Company Filing History:
Years Active: 1995-1996
Title: Innovations of Thomas M O'Leary
Introduction
Thomas M O'Leary is a notable inventor based in Dracut, MA (US). He has made significant contributions to the field of technology, particularly in the area of RF pulse control. With a total of 2 patents to his name, O'Leary's work has had a substantial impact on the industry.
Latest Patents
One of his latest patents is a spurious frequency suppressor. This invention suppresses spurious frequencies in a transmitter by utilizing an RF pulse fall time controller circuit. The circuit includes a quadrature hybrid matched attenuator positioned between a predriver and the first stage of class 'C' driver amplifiers. It linearly attenuates RF pulses and slows the pulse fall time. The operation of the circuit is initiated by the rising edge of a pretrigger, which starts a pretrigger generator. This generator triggers the application of current bias to the attenuator circuit. After a controlled period, the circuit reduces the forward current bias of PIN diodes in the attenuator, increasing the diodes' series resistance and enhancing the attenuation of the RF pulses. This results in a slow pulse fall time, effectively suppressing spurious emissions caused by parasitic ringing of the cascaded Class C common base transistor amplifiers in the transmitter.
Career Highlights
O'Leary is currently employed at Raytheon Company, where he continues to innovate and develop new technologies. His work at Raytheon has allowed him to apply his expertise in RF technology and contribute to various projects that enhance communication systems.
Collaborations
Throughout his career, O'Leary has collaborated with several professionals in the field. Notable coworkers include Peter R Drake and Philip R Merrill, who is now deceased. These collaborations have enriched his work and expanded the scope of his inventions.
Conclusion
Thomas M O'Leary is a distinguished inventor whose contributions to RF technology have been significant. His innovative patents and work at Raytheon Company highlight his expertise and dedication to advancing technology.
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