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LONG-TERM HISTORY OF DISPLAY INTENSITIES

  • US 20180350295A1
  • Filed: 01/18/2018
  • Published: 12/06/2018
  • Est. Priority Date: 06/04/2017
  • Status: Active Grant
First Claim
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1. A non-transitory machine readable medium storing executable instructions which when executed by a data processing system cause the data processing system to perform a method comprising:

  • storing, in memory, a plurality of snapshots over time of data representing display intensity for each pixel in a plurality of pixels in a display, the plurality of pixels displaying one or more images on the display;

    accumulating, in an accumulation buffer, the plurality of snapshots to provide an accumulated value for each pixel in the plurality of pixels;

    flushing the accumulated value for each pixel in the plurality of pixels from the accumulation buffer to memory in a secure processing system and clearing the accumulated values from the accumulation buffer after the flushing;

    adding the accumulated value for each pixel in the plurality of pixels to a long-term history stored in the memory in the secure processing system, the long-term history storing, for each pixel in the plurality of pixels, a long-term display intensity.

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