Atmel has showed off maXTouch multi-touch IC that uses capacitive multi-touch sensing technology. Atmel has acquired Quantum Research Group to develop maXTouch.
Here are a few videos of Atmel’s maXTouch solution:
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Force, Pressure, and Touch - kitronyx.com
Force pressure touch technology: FSR sensor, electronics, firmware and software
Design Service Low Cost Pressure Mapping
Force pressure touch technology: FSR sensor, electronics, firmware and software
Design Service Low Cost Pressure Mapping