Acoustic Sensors Make Any Surface a Touch Pad
An anonymous reader writes "Using cheap acoustic sensors the surface of any 3D object can be instantly made into a touch-sensitive interface capable of tracking two objects at once. Its creators are planning to make hospitals more hygienic — keyboards and mice will be replaced by desks wired to perform as keyboards and touchpads. A video shows it in action [.wmv]."
good read, but . . .
the basic problem with all touchpads, regardless of who makes them or how they are used,
is that they can become a window for RF signals into your computer.
for example, some people experience crazy cursors whenever someone uses a cell phone nearby,
because the RF signal from the phone invades the trackpad.
all this interesting article points up is really that trackpads are very easy to exploit for other
purposes.
i wonder just when someone will hack a way to get into someone's computer hard drive via the
trackpad or wacom tablet.
and why isn't there a notice/warning on all laptops about this weakness of the trackpads
open to RF signals?
does the FCC even know about this?
or is it an urban legend?
regards,
roger born
"sorry, no refunds."