Company Filing History:
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1 out of 2,276 Years Active: 1986-2003
Title: The Innovations of Andrew Paul Lefevre
Introduction
Andrew Paul Lefevre is a notable inventor based in Dunmow, GB. He has made significant contributions to the field of imaging systems, holding a total of 3 patents. His work focuses on charge transfer circuits and integration circuits, showcasing his expertise in electronic engineering.
Latest Patents
One of Lefevre's latest patents is a charge transfer circuit designed for use in imaging systems. This innovative circuit incorporates several concatenated charge transfer stages, each equipped with a charge storage element. These elements store accumulated charge generated by photo-detectors responsive to electromagnetic radiation. The circuit features a first voltage driver connected to the storage element and a second voltage driver linked to the transfer element. By applying specific potential conditions, the accumulated charge is transferred to the next stage, resulting in an integrated signal at the output.
Another significant patent is the time delay charge integration circuit. This circuit includes first and second capacitors along with first and second reference voltage supplies. A first switch manages the integration of charge in the first capacitor and can reset it to the first reference voltage. A second switch resets the second capacitor to the same reference voltage. A current mirror connected to the capacitors discharges the second capacitor by an amount equivalent to the charge integrated on the first capacitor, effectively transferring charge between them at the end of the integration period.
Career Highlights
Throughout his career, Lefevre has worked with prominent companies such as Nortel Networks Corporation and International Standard Electric Corporation. His experience in these organizations has contributed to his development as an inventor and innovator in the field of electronics.
Collaborations
Lefevre has collaborated with notable individuals in his field, including Peter F Blomley and Kenneth A Arton. These collaborations have likely enriched his work and expanded his contributions to technology.
Conclusion
Andrew Paul Lefevre's innovative work in charge transfer circuits and integration circuits has made a significant impact in the field of imaging systems. His patents reflect his expertise and dedication to advancing technology.