Patent ID: 8731530

Claim:
A system for monitoring emissions from a cell phone in a vehicle having a driver side and a passenger side, comprising: a plurality of directional antennas, a first one of said antennas being aimed toward the passenger side, a second one of said antennas being aimed toward a location in which a head of a driver would be situated when a driver is situated on the driver side, and a third one of said antennas being aimed toward a location below the location at which the second antennas is aimed on the driver side; a receiver associated with each of said antennas, each receiver comprising at least one amplifier and a rectifier module receiving output from said at least one amplifier, each of said rectifier modules converting radio frequency signals to direct current signals; and a microprocessor for digitizing the direct current signals received from said receivers and determining based thereon a most likely location of a cell phone being used by an occupant in the vehicle.