Company Filing History:
Years Active: 1995-1999
Title: David E. Jones: Innovator in Power Amplifier Technology
Introduction
David E. Jones is a notable inventor based in Quincy, IL (US), recognized for his contributions to power amplifier technology. He holds a total of 3 patents that focus on enhancing the efficiency and performance of transmitters.
Latest Patents
One of his latest patents is a method and apparatus for reducing key-up distortion by pre-heating. This invention involves a biasing circuit for a power amplifier that significantly reduces distortion during key-up, thereby minimizing key-up time. The power amplifier includes an output transistor and a bias circuit that applies different bias levels during the preheat and transmit periods. This innovative approach ensures that the output transistor reaches a steady-state junction temperature before transitioning to the transmit period, effectively avoiding thermal distortion.
Another significant patent by Jones is a linear transmitter using predistortion. This invention comprises a modulator, predistorter, digital quadrature modulator, upconverter, power amplifier, and antenna. The transmitter features a feedback loop that allows for real-time adjustments to ensure that the output signals are equivalent to the input signals, enhancing the overall performance of the transmission process.
Career Highlights
David E. Jones is currently employed at Glenayre Electronics, Inc., where he continues to develop innovative solutions in the field of telecommunications. His work has significantly impacted the efficiency of power amplifiers and transmitters, making him a valuable asset to his company.
Collaborations
Throughout his career, Jones has collaborated with notable colleagues, including Thomas L. Frederick and Mark A. Walker. These partnerships have fostered an environment of innovation and creativity, leading to advancements in their respective fields.
Conclusion
David E. Jones is a distinguished inventor whose work in power amplifier technology has led to significant advancements in telecommunications. His innovative patents and contributions continue to shape the industry, demonstrating his commitment to excellence and innovation.