Adjunct professor of computer science and independent consultant with decades of experience in the field of telecommunications and information security. Has specialized technical expertise in GPS, VPNs, digital and analog electronics including RF signals and antennas, data communications and networks including fiber-optics, cellular protocols, and communication satellites.

Formal Education

  • Ph.D. in Electrical Engineering, California Institute of Technology
  • M.S. in Electrical Engineering, California Institute of Technology
  • B.S. with Highest Honors, California Institute of Technology

Career Highlights

  • World class expertise in GPS navigation, and all radio direction finding techniques, as one of the designers of the original GPS system
  • Helped design the first set of GPS satellites at a major aerospace company and led the development of classified covert communications satellites as well as a leading aerospace company's commercial satellite network
  • Recipient of a prestigious government award for developing, overseeing microchip fabrication, and demonstrating a novel system to resolve urban multipath communications challenges
  • As a paid advisor to a leading national space agency over a decade and a half, evaluated advanced technology proposals for deep space exploration including for related commercial satellite launches
  • Author of two books about personal computer security and a patent in the field of digital signal processing for high speed communications

Expert Qualifications

  • Expert witness since 1998 with typically 4-5 cases per year resulting in testimony before judges and juries in U.S. District Courts, at the ITC, and in state and foreign courts
  • Testifying expert in over a hundred technology patent litigations
  • Served as an expert witness in an intellectual property dispute in the Australian Federal Court in Sydney
  • Testified in a patent infringement jury trial in U.S. District Court for the Eastern District of Texas on behalf of a plaintiff that was subsequently awarded more than $40 million
  • Testified in a pair of Pennsylvania and Kentucky state criminal trials in relation to GPS location data of accused individuals
  • Testified on behalf of Gemalto in a smart card patent infringement case

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Frequently Asked Questions

What types of cases can this expert support?

Patent litigation in telecommunications, signal processing, aerospace systems, and encryption. They've testified in over 100 patent trials since 1998—federal courts, the ITC, state courts—and handled criminal cases involving GPS location data.

What is this expert's technical background?

PhD, MS, and BS from Caltech in Electrical Engineering. They helped design the original GPS system at Rockwell, led development of military communications satellites, and spent 15+ years advising NASA on deep space technology. Two published books on computer security and a patent in digital signal processing.

What technologies does this expert specialize in?

GPS, VPNs, RF signals and antennas, fiber-optic networks, and cellular protocols. Plus communication satellites, encryption, smartcards, biometrics, and data compression in security and communications contexts.