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
Kelly Davidson Hawkes, Jeffrey Lynn Koehler: Method and apparatus for mobile emitter location. Corsair Communications, Fish & Richardson PC, October 26, 1999: US05973643 (178 worldwide citation)

A location system for identifying locations of emitters in a cellular telephone service area. Searching identifies active emitters in the service area to find the coarse areas in which active emitters are located, using selection criteria to designate one or more of the active emitters as selected e ...


3
Kelly Davidson Hawkes: Transient analysis system for characterizing RF transmitters by analyzing transmitted RF signals. Corsair Communications, David E Lovejoy, May 26, 1998: US05758277 (21 worldwide citation)

A transient analysis system that characterizes the transients in RF signals from radio transmitters. Transient characterization permits identification of the transmitter and is useful in cellular telephone fraud prevention systems. The characterization is based on the analysis of the chirp waveform ...


4
Kelly Davidson Hawkes: Bit characteristics measurement system for digitally modulated signals. Corsair Communications, David E Lovejoy, November 10, 1998: US05835530 (16 worldwide citation)

System for measurement of the bit period (or bit rate or baud rate or symbol rate) and bit epoch (or symbol epoch) of a digitally modulated signal by extracting a bit time-of-transition array, determining an emphasis array with individual elements thereof relating to corresponding elements of the bi ...


5
Kelly Davidson Hawkes: Pre-distortion for fast power transient waveforms. Scintera Networks, Edward C Kwok, Hogan Lovells US, August 27, 2013: US08519789 (5 worldwide citation)

An apparatus and a method select and use parameter values for an RF power amplifier linearizer to pre-distort the input signals of a power amplifier, so as to achieve a linear output response in the power amplifier. The apparatus and the method select from a number sets of parameter values, each set ...


6
Kelly Davidson Hawkes: Pre-distortion for fast power transient waveforms. SCINTERA NETWORKS, July 7, 2015: US09077299

An apparatus and a method select and use parameter values for an RF power amplifier linearizer to pre-distort the input signals of a power amplifier, so as to achieve a linear output response in the power amplifier. The apparatus and the method select from a number of sets of parameter values, each ...