James K Roberge

Title: Innovations of James K Roberge

Introduction

James K Roberge is a notable inventor based in Lexington, MA (US), recognized for his contributions to the field of electrical engineering. He holds a total of six patents, showcasing his innovative spirit and technical expertise. His work primarily focuses on methods and circuits that enhance measurement techniques and device performance.

Latest Patents

Among his latest patents is a "Method for the measurement of capacitance, with application to linear." This invention presents a technique for measuring capacitance and displacement by combining two circuits. One circuit generates a current proportional to capacitance, while the other integrates that current between two reference levels, providing an output proportional to the integration time. In preferred embodiments, the first circuit is a capacitive pump circuit, and the second circuit is a dual-slope integrator. Another significant patent is the "Diode driver circuit utilizing discrete-value DC current source." This invention features a diode driver circuit equipped with an adjustable, fixed-value current source and a variable offset current source for biasing a laser diode. A Darlington pair buffer circuit is included to isolate the diode from the rest of the driver circuit. The output current of the offset current source is managed by several digital-to-analog converters, each controlling a different contribution to the total offset current. Additionally, a diode protector circuit is integrated to safeguard the diode when the system is inactive.

Career Highlights

James K Roberge has had a distinguished career, working with prestigious organizations such as the Massachusetts Institute of Technology and Microsensors Corporation. His experience in these institutions has significantly contributed to his development as an inventor and innovator.

Collaborations

Throughout his career, Roberge has collaborated with notable individuals, including John E Ward and John O Silvey. These partnerships have likely enriched his work and led to further advancements in his inventions.

Conclusion

James K Roberge's innovative contributions to electrical engineering, particularly in capacitance measurement and diode driver circuits, highlight his expertise and commitment to advancing technology. His patents reflect a deep understanding of complex electrical systems and their applications.