Jeff is versed in a wide array of technologies, including semiconductors, data networking, cellular technologies, medical technologies, and other hardware and software products. Specific technologies include power factor correction, voltage regulators, flip chips, on-chip capacitators, microcontrollers, optical networks, Wi-Fi, wireless modems, wireline networks, cellular technologies, voice over IP, blood glucose meters, electric stimulation leads, laparoscopic surgical equipment, antennas, lens, smartphone technologies, e-discovery software, encryption software, authentication and authorization systems, systems for managing software installation and updates, electronic systems for trading of future contracts, and systems for providing emergency services.