This inventor holds 1 USPTO granted patent. Top assignee: Other. Active years: 1996.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
1 out of 834,453 Years Active: 1996
Title: Lee E Freitag: Innovator in Underwater Acoustic Telemetry
Introduction
Lee E Freitag is a notable inventor based in Woods Hole, MA (US). He has made significant contributions to the field of underwater acoustic telemetry, showcasing his expertise through innovative patent work. His inventions focus on enhancing the efficiency and reliability of underwater communication systems.
Latest Patents
Freitag holds a patent for "Spatial diversity processing for underwater acoustic telemetry." This patent describes an underwater acoustic telemetry system that utilizes spatially distributed receivers with aperture sizes ranging from 0.35 to 20 meters. The output from each receiver is assigned a quality measure based on the estimated error rate. The data is then combined and decoded, weighted by this quality measure. The quality measure is derived from a Viterbi error-correction decoder operating on each receiver. The system exploits the signal and noise differential travel times to individual sensors, addressing the challenges posed by the shallow-water acoustic channel.
Career Highlights
Freitag's career is marked by his dedication to advancing underwater communication technologies. His innovative approaches have led to significant improvements in error rates and system reliability. By increasing receiver spacing beyond 5 meters, he has demonstrated additional benefits in the presence of impulsive noise and larger scale inhomogeneities in the acoustic field. His work has shown that diversity combining, even with just two receivers, can dramatically lower uncoded error rates while providing immunity to transducer jamming or failure.
Collaborations
Freitag has collaborated with Josko A Catipovic, further enhancing the impact of his work in the field of underwater acoustics. Their partnership has contributed to the development of advanced technologies that improve underwater communication systems.
Conclusion
Lee E Freitag's contributions to underwater acoustic telemetry exemplify the importance of innovation in enhancing communication technologies. His patent work and collaborations have paved the way for more reliable underwater systems, showcasing his role as a leading inventor in this specialized field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile