Qualcomm Licensing PowerVR Display Intellectual Property Technology
Subject: Mobile | December 16, 2011 - 03:00 AM | Tim Verry
Tagged: tegra, SoC, qualcomm, PowerVR, mobile, Android, adreno
Quite a few mobile device manufacturers are implementing graphics processors and image processors based on Imagination Technologies’ PowerVR technology. Popular licensees of Imagination Technologies PowerVR core patents include Intel, LG, Samsung, Sony, and Texas Instruments (a big one in regards to number of SoCs using PowerVR techs for mobile phones).
Interestingly, Qualcomm is not currently licensing the graphics processor portfolio that man other mobile OEMs license. Rather, Qualcomm is licensing the PowerVR display patents. The intellectual property features the PowerVR de-interlacing cores and de-judder purposed FRC (Frame Rate Conversion) core. The de-interlacing core(s) can do either “motion adaptive (MA) or motion compensated (MC) de-interlacing” as well as a few other algorithms to deliver smooth graphics. Further, the FRC cores take 24 FPS (frames per second) source material and outputs it as either 120 Hz or 240 Hz while applying image processing to keep the video looking smooth to the eye. The method for grabbing and extrapolating “extra” frames to take a 24 FPS video and display it on an LCD screen that refreshes at 120 Hz by displaying each one of those 24 frames five times every second involves a bit of math and algorithmic magic; a simplistic explanation can be read here.
It will be interesting to see how Qualcomm applies the image processing technology to their future SoCs (system on a chip) to entice manufacturers into going with them instead of competition like Texas Instruments or Nvidia’s Tegra chips. The Verge speculates that this Qualcomm and Imagination Technologies deal may be just the first step towards Qualcomm licensing more PowerVR tech (possibly) including the GPU portfolio. Whether Qualcomm will ditch their Adreno GPUs remains to be seen. If I had to guess, the SoC maker will invest in more PowerVR IP, but they will not completely abandon their Adreno graphics. Rather, they will continue developing next generation Adreno graphics for use in their SoCs while also integrating the useful and superior aspects of PowerVR graphics and display technologies. Another option may be to develop and sell both platforms (possibly with one being high end competition to Tegra and the other being for the rest of phones as competition to other low end, low power chips) to hedge their bets into the future of mobile SoCs which is a rapidly advancing industry where change and what is considered the top tech happens quickly.
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