Linked by Thom Holwerda on Tue 10th Jul 2012 01:24 UTC
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Member since:
2010-03-08
I once worked in an acoustics lab where people detected tapping and dragging motion using a flat surface (regular table) with a few cheap piezo microphones stuck on it and a computer program.
It's crazy that modern touchscreens use something as complicated, unreliable and expensive as capacitive sensing, when so many simpler approaches exist...
Edited 2012-07-10 10:53 UTC