|Vibrating magnetic tattoos may one day be used to alert mobile phone
users to phone calls and text messages if Nokia follows up a patent
application. The Finnish company has described the idea in a filing to
the US Patent and Trademark Office.
The patent, which was filed last week, describes tattooing, stamping or
spraying 'ferromagnetic' material onto a user's skin and then pairing it
with a mobile device. It says different vibrations could be used to
create a range of alerts. It suggests a magnetic marking could be
attached to either a user's arm, abdominal area, finger or fingernail.
The filing also suggests that the magnetised marking could be used as an
identity check. It says that by picking a certain shape the user could
create a 'specific magnetic impedance' - effectively their own magnetic
fingerprint. It says this could act as a 'password" and gives the
example of a laptop refusing to display content on its screen unless it
verifies its user is close by.