Marshall R Brookhart

Title: The Innovations of Marshall R. Brookhart

Introduction

Marshall R. Brookhart is a notable inventor based in Thousand Oaks, California. He has made significant contributions to the field of video technology, holding a total of four patents. His work has focused on enhancing the functionality and performance of helical video recorders.

Latest Patents

One of Brookhart's latest patents is the "Automatic track following feature for helical video recorder." This invention enables the reproduction of video fields at various speeds, including normal, fast, slow forward, and reverse speeds, as well as stop motion. The mechanism allows the playback head to move transversely to the helical tracks on a magnetic tape, ensuring that the head remains centered on the track regardless of the tape's speed and direction. Another significant patent is the "Head position control signal," which generates a signal for driving the head positioning mechanism based on a comparison of the instantaneous tape speed with a reference speed indicating signal. Additionally, he developed a "Head positioning transducer for helical scan video reproducer." This transducer is designed for use with a rotating drum assembly and includes a permanent magnet field assembly and a drive coil. The controlled movement of the playback head is achieved through the interaction of the drive current supplied to the coil with the field of the magnet.

Career Highlights

Brookhart has had a distinguished career at the Minnesota Mining and Manufacturing Company, where he has been instrumental in advancing video recording technology. His innovative designs have paved the way for improved video playback systems, enhancing user experience and functionality.

Collaborations

Throughout his career, Brookhart has collaborated with notable colleagues, including Fredrick J. Hodge and Thomas J. Worden. These partnerships have contributed to the development of groundbreaking technologies in the field.

Conclusion

Marshall R. Brookhart's contributions to video technology through his patents and collaborations have significantly impacted the industry. His innovative spirit continues to inspire advancements in video recording and playback systems.