At 04:23 PM 4/18/00 -0400, Patrick Henry wrote:
and it might be possible for someone to lift a latent fingerprint from
your work area and make a rubber finger. The device supposedly has some
type of "live finger" detector though.
This would be a great project for the lab-inclined folks when
At 05:00 PM 4/19/00 -0400, Patrick Henry wrote:
There are a number of good live-finger detect methods beyond simple
resistance and capacitance that are not easily fooled. Pulse oximetry
is one. There are other extremely good methods which I can't discuss
here since I'm under non-disclosure.
