David Stedman

Title: The Innovative Mind of David Stedman

Introduction

David Stedman is a notable inventor based in Morgan Hill, California. He has made significant contributions to the field of tape motion control technology. His innovative approach has led to the development of a unique patent that enhances the performance of reel-to-reel tape systems.

Latest Patents

Stedman's most recent patent is titled "Tape motion control for reel-to-reel drive." This invention achieves high tape acceleration rates in an unbuffered, capstanless tape drive system. The apparatus employs separate drive motors for each reel of a reel-to-reel tape transport. The tape moves from one reel past a read/write head and a tape tension sensor to the other reel, without a tachometer in the tape feed path. A tachometer on one reel shaft provides a large number of pulses per revolution, which are counted by a counter. Meanwhile, a tachometer on the other reel shaft provides only one pulse per revolution, which gates out the accumulated count for actuating means to provide motor acceleration currents. This is done according to a predetermined servo algorithm for controlling the rotation of both reels. The system also calculates a tape radius constant during the initial wrap of tape onto the takeup reel, ensuring tight control of tension through an analog tension sensor and servo system.

Career Highlights

David Stedman is currently employed at International Business Machines Corporation (IBM). His work at IBM has allowed him to explore and develop innovative technologies that push the boundaries of tape motion control. His dedication to research and development has made him a valuable asset to the company.

Collaborations

Throughout his career, Stedman has collaborated with talented individuals such as John J. Eige and Arvind M. Patel. These collaborations have fostered an environment of innovation and creativity, leading to advancements in their respective fields.

Conclusion

David Stedman's contributions to tape motion control technology exemplify his innovative spirit and dedication to engineering excellence. His patent reflects a significant advancement in the field, showcasing his ability to solve complex problems through inventive solutions.