This inventor holds 3 USPTO granted patents. Top assignees: Lockheed Martin Corporation, United States of America as Represented by the Secretary of the Air Force. Active years: 1993-1999.
Company Filing History:
2 out of 5,316 
1 out of 5,083 
Years Active: 1993-1999
Title: The Innovations of Clifford M Gray
Introduction
Clifford M Gray is an accomplished inventor based in Owego, NY (US). He holds a total of 3 patents that showcase his expertise in advanced technology and systems for locating transmitters. His work has significantly contributed to the fields of navigation and signal processing.
Latest Patents
One of his notable inventions is the Doppler triangulation transmitter location system. This system is designed to locate the position of a transmitter by moving a platform containing an antenna through a measurement path. The frequency received by the antenna is measured at various points along this path. The system employs cross-correlation of coherent pulses of the received frequency signal to determine the transmitter's location. An inertial navigation system on the platform indicates the position of the measurement path, while a computer uses non-linear least squares convergence to estimate locations based on the received frequency.
Another significant patent is the self-resolving long baseline interferometer (LBI) triangulation system. This system determines the position of a transmitter by monitoring phase differences between signals received by antennas at each end of a baseline. As the interferometer moves through a measurement path, it collects phase difference measurements. A cost function is calculated for each trial location, and the grid point with the lowest cost function is selected for further analysis. The least squares convergence process iteratively refines the predicted values until convergence is achieved.
Career Highlights
Clifford M Gray has worked with prominent organizations, including Lockheed Martin Corporation and the United States of America as represented by the Secretary of the Air Force. His experience in these esteemed institutions has allowed him to develop and refine his innovative ideas.
Collaborations
Throughout his career, Clifford has collaborated with talented individuals such as Steven V Czarnecki and Carl Gerst. These partnerships have likely contributed to the success of his inventions and patents.
Conclusion
Clifford M Gray's contributions to the field of transmitter location systems demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology and improving navigation systems.