Location History:
- Mont Vernon, NH (US) (1993 - 1996)
- Sudbury, MA (US) (2015)
Company Filing History:
Years Active: 1993-2015
Title: The Innovations of David M Upton
Introduction
David M Upton is a notable inventor based in Mont Vernon, NH (US), recognized for his contributions to the field of telecommunications and signal processing. With a total of five patents to his name, Upton has made significant advancements in technology that enhance the performance and efficiency of various systems.
Latest Patents
One of Upton's latest patents is a "Phase lock loop with tracking filter for attenuating spurious signals of a swept local oscillator." This invention focuses on improving the output of a swept Direct Digital Synthesis (DDS) oscillator by utilizing a band-pass filter with an adjustable center frequency. The filter is designed to track the instantaneous frequency of the DDS oscillator in real time, ensuring high spectral purity. The tracking mechanism involves a phase comparator that measures the phase difference between the input and output of the band-pass filter, allowing for precise adjustments.
Another significant patent is the "Linear power amplifier for high efficiency multi-carrier performance." This invention features a Doherty-type power amplifier that is particularly suitable for satellite telecommunication systems. It provides linear amplification of noise-like RF signals with multiple carriers across a wide bandwidth. Upton's design achieves efficiencies between 40% to 50% using PHEMT devices, optimizing performance at both low and high power levels.
Career Highlights
Throughout his career, David M Upton has worked with prominent companies such as Raytheon Company and Motorola Corporation. His experience in these organizations has contributed to his expertise in developing innovative solutions in the telecommunications sector.
Collaborations
Upton has collaborated with notable professionals in his field, including Robert J McMorrow and Jack J Schuss. These partnerships have likely fostered an environment of creativity and innovation, leading to the development of groundbreaking technologies.
Conclusion
David M Upton's contributions to the field of telecommunications through his patents and career achievements highlight his role as a significant inventor. His work continues to influence advancements in technology, showcasing the importance of innovation in enhancing system performance.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.