Location History:
- Torrance, CA (US) (2004)
- Torrence, CA (US) (2022)
Company Filing History:
Years Active: 2004-2022
Title: James D. Cooper: Innovator in Harmonic Testing and Demodulation Systems
Introduction
James D. Cooper is a notable inventor based in Torrance, CA (US). He has made significant contributions to the field of harmonic testing and demodulation systems. With a total of 2 patents, his work showcases innovative methods and systems that enhance signal processing.
Latest Patents
One of his latest patents is the "Passive Harmonic Test System and Method." This invention includes methods and systems for harmonic intermodulation testing. The test system features a signal generator that produces a test signal with a first frequency. It also incorporates an antenna system for transmitting and receiving harmonic intermodulation signals. Additionally, a filter is included to eliminate unwanted signals over a bandwidth that encompasses the first frequency. An analysis unit measures the power level of a second frequency within the harmonic intermodulation signal and determines the passive intermodulation magnitude based on this power level.
Another significant patent is the "QPSK and 16 QAM Self-Generating Synchronous Direct Downconversion Demodulator." This system is designed for recovering and demodulating a carrier. It consists of a carrier recovery loop and a data detector. The carrier recovery loop processes the carrier input to produce a recovered carrier at a frequency close to that of the original carrier. The system utilizes a downconverting mixer, multipliers, and a phase-locked loop to achieve its functionality. The data detector then uses the recovered carrier to demodulate the carrier and detect I channel and Q channel data.
Career Highlights
James D. Cooper is currently employed at The Boeing Company, where he applies his expertise in signal processing and communication systems. His work at Boeing has allowed him to contribute to advanced technologies in the aerospace sector.
Collaborations
Throughout his career, James has collaborated with talented individuals such as Kurt William Loheit and Leah N. Burk. These collaborations have fostered innovation and development in their respective fields.
Conclusion
James D. Cooper is a distinguished inventor whose work in harmonic testing and demodulation systems has made a significant impact. His patents reflect a commitment to advancing technology and improving signal processing methods.