Joseph S Friedman

Title: Joseph S. Friedman: Innovator in Geolocation Technology

Introduction

Joseph S. Friedman is a notable inventor based in Baltimore, MD (US), recognized for his contributions to geolocation technology. He holds a patent for a unique method that enhances the accuracy of direction finding in radio signal sources, particularly in environments with heavy interference. His innovative approach has significant implications for various applications in communication and navigation.

Latest Patents

Friedman's patent, titled "Time Difference of Arrival Geolocation Method," presents a direction finding method and apparatus for a radio signal source modulated by a digital information signal. This method is particularly effective in environments with substantial interference. The technique utilizes cyclic crosscorrelation to exploit the second-order periodicity of transmitted signals, making it immune to narrow-band interference. By employing two spaced antennas, the time of arrival difference between the signals received is determined, allowing for accurate geolocation of the radio source.

Career Highlights

Joseph S. Friedman is associated with Signal Science, Inc., where he applies his expertise in signal processing and geolocation technologies. His work has contributed to advancements in the field, particularly in enhancing the reliability of communication systems in challenging environments.

Collaborations

Friedman has collaborated with notable colleagues, including John P. King and Joseph P. Pride, III. These partnerships have fostered innovation and development in the technologies they work on.

Conclusion

Joseph S. Friedman stands out as an influential inventor in the realm of geolocation technology. His patented methods and collaborative efforts continue to shape advancements in signal processing and communication systems.