flyblue
4th Nov 2003, 04:23
From the NYT
For cellphones, next new functions
Sabra Chartrand
"(...)Some people still forget to turn off their cellphones in theaters and on airplanes. To find the offenders, Mark Kroll has patented a system of antennas that can pinpoint an active cellphone. Kroll, from Simi Valley, California, won a patent for a system that places one antenna at the front of a plane and another at the back, or arrays three antennas in a theater.
.
The antennas pick up signals from the phones".
.
The New York Times
For cellphones, next new functions
Sabra Chartrand
"(...)Some people still forget to turn off their cellphones in theaters and on airplanes. To find the offenders, Mark Kroll has patented a system of antennas that can pinpoint an active cellphone. Kroll, from Simi Valley, California, won a patent for a system that places one antenna at the front of a plane and another at the back, or arrays three antennas in a theater.
.
The antennas pick up signals from the phones".
.
The New York Times