Company Filing History:
Years Active: 1981-1995
Title: The Innovations of Anthony G Dewey
Introduction
Anthony G Dewey is a notable inventor based in San Jose, CA, who has made significant contributions to the field of optical technology. With a total of 5 patents to his name, Dewey has focused on enhancing the performance and efficiency of optical devices, particularly in data storage and retrieval systems.
Latest Patents
Dewey's latest patents showcase his innovative approach to solving complex problems in optical technology. One of his notable inventions is a system for common mode rejection control in an optical disk drive. This invention provides an internal routine for automatically optimizing the common mode rejection ratio of the magneto-optic data output signal. A microprocessor controls a module that supplies calibration signals to the data detecting portion, modifying predetermined parameters based on measurements indicative of the common mode rejection ratio. This optimization corrects for mismatches in both optical elements and electronic data circuits.
Another significant patent involves focus-error detection using prism-enhanced spot size monitoring. This apparatus and method detect focus errors in an optical head by positioning a prism in the optical path of a return light beam reflected from an optical recording medium. The prism reduces the beam in one dimension while enhancing the focus error signal, allowing for more accurate detection of focus errors through a segmented photodetector.
Career Highlights
Dewey has spent a considerable part of his career at International Business Machines Corporation (IBM), where he has been instrumental in developing cutting-edge optical technologies. His work has not only advanced the capabilities of optical drives but has also contributed to the overall efficiency of data storage solutions.
Collaborations
Throughout his career, Dewey has collaborated with several talented individuals, including Glenn T Sincerbox and Charles P Marinelli. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies in the optical field.
Conclusion
Anthony G Dewey's contributions to optical technology through his patents and work at IBM highlight his role as a leading inventor in the industry. His innovative solutions continue to influence the development of advanced optical systems, showcasing the importance of creativity and collaboration in technological advancements.