This inventor holds 12 USPTO granted patents and 1 published patent application. Top assignees: Nortel Networks Corporation, Apple Inc., Rockstar Bidco, LP. Active years: 2000-2014.
Company Filing History:
8 out of 4,171 
3 out of 43,321 
1 out of 162 Years Active: 2000-2014
Title: The Innovations of David M Tholl
Introduction
David M Tholl is a notable inventor based in Calgary, Canada. He has made significant contributions to the field of signal processing, particularly in the area of transmitter linearization. With a total of 12 patents to his name, Tholl's work has had a considerable impact on telecommunications technology.
Latest Patents
Among his latest patents is the "Signal Transmitter Linearization," which describes a linearizer for a non-linear transmitter. This invention includes a tap delay line that provides samples of an input signal at selected times. At least one Volterra tap is coupled to the tap delay line, which features a lookup table representation of a polynomial. An adaptive controller is also coupled to the Volterra tap for modifying values in the lookup table. Another significant patent is also titled "Signal Transmitter Linearization," which outlines a linearizer for a non-linear transmitter and method that includes a gain regulator and predistorter. This invention is designed to be coupled to a non-linear transmitter in various configurations, with bounding controllers linked to the gain regulator and predistorter to maintain normal operation and prevent unstable transmitter operation.
Career Highlights
David M Tholl has worked with prominent companies such as Nortel Networks Corporation and Apple Inc. His experience in these organizations has allowed him to develop and refine his innovative ideas in telecommunications.
Collaborations
Throughout his career, Tholl has collaborated with talented individuals, including Peter Zahariev Rashev and John-Peter Van Zelm. These collaborations have contributed to the advancement of his inventions and the overall field of signal processing.
Conclusion
David M Tholl's contributions to the field of telecommunications through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the industry and pave the way for future advancements.