John P King

Title: Innovations of John P. King

Introduction

John P. King is a notable inventor based in Ellicott City, MD (US). He has made significant contributions to the field of technology, particularly in the areas of ultrasonic processing and radio signal direction finding. With a total of two patents to his name, his work showcases a blend of creativity and technical expertise.

Latest Patents

One of John P. King's latest patents is the "Ultrasonic Frequency Expansion Processor." This invention involves a method and apparatus for expanding audiometric frequencies before translating them into the ultrasonic range. The process begins by expanding the audiometric signals in time while maintaining their frequency content. The frequency of the signals is then expanded while compressing the time scale to match the original signal. This frequency-expanded signal is processed through a single-sideband upconverter to translate it into a single sideband signal in the ultrasonic range.

Another significant patent is the "Time Difference of Arrival Geolocation Method." This invention is a direction-finding method and apparatus for a radio signal source that is modulated by a digital information signal and exists in a heavy interference environment. The technique utilizes cyclic cross-correlation to exploit the second-order periodicity of a transmitted signal, making it immune to narrow-band interference. The method involves receiving radio frequency signals through two spaced antennas and determining the time of arrival difference between them using a cyclic cross-correlation method.

Career Highlights

John P. King is currently associated with Signal Science, Inc., where he applies his innovative ideas to real-world challenges. His work has been instrumental in advancing technologies that enhance signal processing and geolocation methods.

Collaborations

John has collaborated with notable colleagues, including Joseph S. Friedman and Joseph P. Pride, III. These partnerships have contributed to the development of his innovative patents and have fostered a collaborative environment for technological advancement.

Conclusion

John P. King is a distinguished inventor whose work in ultrasonic processing and radio signal direction finding has made a significant impact in the field of technology. His patents reflect a commitment to innovation and problem-solving in complex environments.