Location History:
- Santa Ana, CA (US) (1989)
- Laguna Hills, CA (US) (1992)
Company Filing History:
Years Active: 1989-1992
Title: Michael S. Sheehan: Innovator in Tape Drive Technology
Introduction
Michael S. Sheehan is a notable inventor based in Laguna Hills, California. He has made significant contributions to the field of tape drive technology, holding two patents that showcase his innovative approach to engineering challenges.
Latest Patents
One of his latest patents is titled "Apparatus and method for automatic write current calibration in a tape drive." This invention focuses on calibrating the write current applied to a write head in a tape drive. It finds the peak value of the write current by measuring the voltage sensed by a read head. The apparatus includes a digital write current control circuit that applies a write current responsive to a digital write current value. The method involves sampling the output of a pattern detector as the digital read gain value is adjusted, ultimately leading to the selection of a calibrated digital write current.
Another significant patent is the "Compensation circuit for nullifying differential offset voltage." This apparatus nullifies the differential output offset voltage between the outputs of a differential amplifier. It includes a circuit that cross-couples the opposing AC output signals to obtain the DC components. The compensation voltage generated is fed back to the differential amplifier to reduce the offset voltage to nearly zero volts.
Career Highlights
Michael S. Sheehan works at Archive Corporation, where he applies his expertise in developing advanced tape drive technologies. His work has been instrumental in enhancing the performance and reliability of data storage solutions.
Collaborations
Some of his notable coworkers include John J. Quintus and Tuong M. Vu, who have collaborated with him on various projects within the company.
Conclusion
Michael S. Sheehan's contributions to tape drive technology through his innovative patents reflect his dedication to advancing engineering solutions. His work continues to impact the field positively, showcasing the importance of innovation in technology.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.