Apple has already expanded its multi-touch empire quite a bit in the form of various patent applications, and it now looks like it could be set to give the core system itself an update, at least according to a trio of just-revealed patent applications. he main one is an application that describes a "sensor arrangement for use with a touch sensor that identifies hand parts." Among other things, that'll apparently allow for simultaneous tracking of "multiple finger and palm contacts" which, according to the patent, should allow for "unprecedented integration of typing, resting, pointing, scrolling, 3D manipulation, and handwriting." That last bit is apparently accomplished using a "pen grip detector," which can apparently detect if you're mimicking the position of holding a pen and adjust accordingly. Hit up the read link below for complete details in full-on patent-speak.

[Via PC Joint, thanks Stasys]

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Apple patent applications reveal updated multi-touch system