U.S. Utility Patent 6,642,857 (US6642857B1)

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Provided by the ASK Keyboard Patents database

Applied 19th January 2001

Published 4th November 2003

Expired 16th May 2022

More informaion

Name	Capacitive pointing stick
Inventors	Richard Schediwy, Mark Huie, Charles Cook
Description	An invention for a keyboard pointing stick using force-sensing capacitor technology, said to be less suspectible to noise and reduces component count over a force-sensing resistor based stick. This was implemented as the Synaptics TouchStyk, which was notabled used on IBM and Lenovo SK-8835, SK-8840 & SK-8845 family keyboards.

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