Tablet XY circuitry

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Hi,
 I am looking for some chips ( or ideas ) which could be used for Magnetic
pen tablet XY  circuitry ( A/C , signal conditioning etc. )
 Any ideas appreciated.
Thanks Radim




Re: Tablet XY circuitry


put finger to keyboard and composed:

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Summagraphics tablets used to use this method. Unfortunately the last
one I saw was ~20 years ago.

See http://www.freepatentsonline.com/4482784.html

-- Franc Zabkar

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