Patent ID: 8285222

Claim:
A system for identifying a wireless telephone comprising: a signal generator operable to generate a time deterministic, spectrally noncoherent waveform from a transmit horn such that the wireless telephone passively reflects a response waveform, the time deterministic, spectrally noncoherent waveform having a range of frequencies approximately at the operating frequencies of the wireless telephone, and wherein the time deterministic, spectrally noncoherent waveform includes a plurality of electro-magnetic vectors, the sum of which substantially converge toward zero; and a computing system coupled to a receive horn through a receiver, the computing system being operable to: scan the time deterministic, spectrally noncoherent waveform through an azimuthal or elevational extent; receive the response waveform from the wireless telephone; and compare the response waveform to a plurality of reference waveforms to determine the identity of the wireless telephone and the operating mode of the wireless telephone.