This inventor holds 6 USPTO granted patents. Top assignees: Koninklijke Philips Corporation N.v., Philips Electronics North America Corporation. Active years: 2000-2006.
Company Filing History:
5 out of 21,871 
1 out of 838 
Years Active: 2000-2006
Title: The Innovations of David Koo
Introduction
David Koo is a notable inventor based in Carmel, NY (US), recognized for his contributions to the field of digital television and wireless communication. With a total of 6 patents to his name, Koo has made significant advancements that enhance signal quality and improve communication systems.
Latest Patents
One of Koo's latest patents is titled "Pre-equalizer structure based on PN511 sequence for terrestrial DTV reception." This invention employs a free-running sample rate converter and a large spanning, non-linear pre-equalizer before a timing recovery loop within a wireless receiver chain. The design retains forward and feedback equalization after the timing recovery loop, which is crucial for improving signal quality for carrier and timing recovery. This innovation increases the probability of successful decoding while enabling the use of fast tracking forward and feedback equalizers.
Another significant patent is the "Method and apparatus for echo cancellation in digital ATV systems using an echo cancellation reference signal." This invention introduces a novel echo cancellation reference (ECR) training signal into the current ATSC 8 VSB data stream. The ECR training signal enhances echo rejection while maintaining compatibility with the ATSC 8 VSB digital ATV standard. The pre-equalization subsystem included in the digital ATV system is trained with the ECR training signal, providing improved performance for standard VSB receivers and other applications.
Career Highlights
David Koo has worked with prominent companies such as Koninklijke Philips Corporation N.V. and Philips Electronics North America Corporation. His experience in these organizations has contributed to his expertise in developing innovative solutions in the field of digital communication.
Collaborations
Throughout his career, Koo has collaborated with talented individuals, including Dagnachew Birru and Gennady Turkenich. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.
Conclusion
David Koo's contributions to the field of digital television and wireless communication are noteworthy. His innovative patents and collaborations have significantly impacted the industry, showcasing his dedication to advancing technology.