1
Kelly Davidson Hawkes, Michael Shaw McKinley, Kenneth Irwin Talbot: Cellular telephone fraud prevention system using RF signature analysis. Corsair Communications, David E Lovejoy, May 18, 1999: US05905949 (184 worldwide citation)

Apparatus for identifying wireless subscriber units and for determining if access to a communications network should be granted. A plurality of wireless subscriber units each generates a wireless subscriber signal including internal data traits and external signal traits. The internal data traits in ...


2
Robert Eugene Stoddard, Michael Shaw McKinley: Validation method and apparatus for preventing unauthorized use of cellular phones. Corsair Communications, David E Lovejoy, February 9, 1999: US05870672 (18 worldwide citation)

Validating identification clusters formed of unique transmitter intercepts and validating clusters based on information within the cluster data with or without the aid of specific intercepts. Transmitter validation signals are allocated for validating specific ones of the transmitters. Analyzers ide ...


3
Robert Eugene Stoddard, Michael Shaw McKinley: Broadband frequency agile signal characterization. Aeroflex Powel, David E Lovejoy, March 25, 2008: US07349457 (2 worldwide citation)

A signal analyzer to characterize the RF signal transmitted by a frequency hopping radio transmitter. The transmitted signal is analyzed while hopping across a broad frequency band without knowledge of the hop frequencies, timing or signal bandwidth. A wide range of signal parameters are measured on ...


4
Robert Eugene Stoddard, Michael Shaw McKinley, John Lorin Anderson: Digitally controlled angle noise signal generator. Aeroflex Powell, David E Lovejoy, June 29, 2004: US06756854 (2 worldwide citation)

A digitally controlled angle noise signal generator for generating a signal with precise and accurate noise. The signal generator is formed of a digital noise generator for generating a digital noise signal &thgr;


5
Robert Eugene Stoddard, Michael Shaw McKinley: Generator for agile frequency signals. Aeroflex High Speed Test Solutions, David E Lovejoy, December 15, 2009: US07634239 (1 worldwide citation)

The subject of this patent is a system to generate RF frequency hopped signals that can be used to test radio receivers over the range of their signal specifications. The hop sequence and symbols in the signal is decoded from signals transmitted by the same or different radio of the same specificati ...


6
Robert Eugene Stoddard, Michael Shaw McKinley, John Lorin Anderson: Digitally controlled angle noise signal generator. David E Lovejoy, Fliesler Dubb Meyer & Lovejoy, May 6, 2004: US20040085143-A1

A digitally controlled angle noise signal generator for generating a signal with precise and accurate noise. The signal generator is formed of a digital noise generator for generating a digital noise signal N, and a digital signal generator for forming an internal signal S. The digital signal genera ...


7
Robert Eugene Stoddard, Michael Shaw McKinley: Generator for agile frequency signals. David E Lovejoy Reg No 22 748, September 29, 2005: US20050215208-A1

The subject of this patent is a system to generate RF frequency hopped signals that can be used to test radio receivers over the range of their signal specifications. The hop sequence and symbols in the signal is decoded from signals transmitted by the same or different radio of the same specificati ...


8
Robert Eugene Stoddard, Michael Shaw McKinley: Broadband frequency agile signal characterization. David E Lovejoy Reg No 22 748, October 13, 2005: US20050227626-A1

A signal analyzer to characterize the RF signal transmitted by a frequency hopping radio transmitter. The transmitted signal is analyzed while hopping across a broad frequency band without knowledge of the hop frequencies, timing or signal bandwidth. A wide range of signal parameters are measured on ...