Graphics display system with unified memory architecture

Details Graphics display system with unified memory architecture Graphics display system with unified memory architecture

2007-04-24

2007-04-24

Myers, Paul R. (Department: 2112)

Electrical computers and digital data processing systems: input/

Access arbitrating

Access prioritizing

C710S111000, C345S440000

Reexamination Certificate

active

10762975

ABSTRACT:
A graphics display system integrated circuit is used in a set-top box for controlling a television display. The graphics display system processes analog video input, digital video input, and graphics input. The system incorporates a unified memory architecture that is shared by the graphics system, a CPU, and other peripherals. The unified memory architecture uses real time scheduling to service tasks. Critical instant analysis is used to find a schedule for memory usage that does not affect memory requirements of real time tasks while at the same time servicing non-real-time tasks as needed.

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