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System and method for identification of communication devices

  • US 8,285,222 B2
  • Filed: 09/12/2007
  • Issued: 10/09/2012
  • Est. Priority Date: 09/12/2007
  • Status: Active Grant
First Claim
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1. 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.

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