Display processor for a wireless device

Details Display processor for a wireless device Display processor for a wireless device

2011-01-11

2011-01-11

Washburn, Daniel (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphic processing system

Plural graphics processors

C345S503000, C345S519000, C345S520000

Reexamination Certificate

active

07868890

ABSTRACT:
A display processor includes an interface unit, an instruction processor, a synchronization unit, at least one processing unit, and a device buffer. The interface unit receives input image data (e.g., from a main memory) and provides output image data for a frame buffer. The instruction processor receives instructions (e.g., in a script or list) and directs the operation of the processing unit(s). The synchronization unit determines the location of a read pointer for the frame buffer and controls the writing of output image data to the frame buffer to avoid causing visual artifacts on an LCD screen. The processing unit(s) may perform various post-processing functions such as region flip, region rotation, color conversion between two video formats (e.g., from YCrCb to RGB), up/down image size rescaling, alpha-blending, transparency, text overlay, and so on.

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