Quote:
Originally Posted by m-reader
1) The active component of the digitiser is in the screen itself. The stylus is totally passive. I think it may have a magnet or something similar in it ...
|
Totally passive is wrong. It is actually powered by the iLiad..
Roughly speaking the stylus is an oscillating circuit, the iLiad send out an electromagnetic impulse, this induces the circuit, the circuit sends back an altered electromagnetic impulse with information coded in like pressure.
Yes this is roughly speaking the same tech as what shops use to protect their stuff from getting stolen.