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Patented Graffiti

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Seems there's been a ruling against Palm in the patent-infringement lawsuit brought by Xerox. In '93, Xerox filed for a patent on an approach to handwriting recognition called Unistroke that uses one stroke per letter to enter text. (As you can see in that image, it's pretty clunky, with many of the characters bearing little or no resemblance to the way people ordinarily write them, but that has no bearing on the patent.) In '96, U. S. Robotics released the first two Palm units that used Graffiti. In '97, Xerox received its patent and promptly sued. They lost one suit, appealed, lost again, and appealed again; they've now won that second appeal. (And obviously Palm is going to appeal this decision.) Lots of details of the decision available online.

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