Pemalite on 25 September 2016
This is a patent. It's not unusual for companies to make patents covering a vast array of technologies and ideas to add to their patent portfolio, the majority of these patents may never ever see the light of day... But they are also still stupidly valuable, especially when it comes to litigation time.
Companies which tend not to have many patents... Tend to be at the mercy of patent trolls, HTC found out the hard way, thus they purchased S3 graphics and entered into various cross-patent deals to protect themselves.
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