Joe Bragg

Title: The Innovations of Joe Bragg

Introduction

Joe Bragg is a notable inventor based in San Jose, California. He has made significant contributions to the field of technology, particularly in the area of hard disk drives. With a total of four patents to his name, Bragg's work has had a substantial impact on the efficiency and performance of data storage devices.

Latest Patents

Bragg's latest patents include an "Apparatus and method to minimize amplitude variations associated with media/head response characteristics in servo writing of perpendicular magnetic recording." This invention involves a servo writer that writes servo information onto a disk of a hard disk drive. The writing process is synchronized by a clock track that contains a clock read back signal, which is enhanced by a differentiator circuit. Additionally, a clamping circuit is utilized to minimize signal ringing, undershoot, and overshoot phenomena in the signal. Another significant patent is the "Delay clock track read back data to compensate time variance due to disk thermal expansion in spiral servo track writing." This method allows for the effective writing of servo information onto a disk by detecting a circumferential index from a clock signal generated from a clock track. The servo writer includes a phase detector that identifies changes in the relative position of the circumferential and radial indices, along with a delay circuit that offsets such changes.

Career Highlights

Bragg is currently employed at Samsung Electronics Co., Ltd., where he continues to innovate and develop new technologies. His work has been instrumental in advancing the capabilities of hard disk drives, making them more reliable and efficient.

Collaborations

Throughout his career, Bragg has collaborated with talented individuals such as Seong Woo Kang and Seong Hoon Kim. These collaborations have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies.

Conclusion

Joe Bragg's contributions to the field of technology, particularly in hard disk drive innovations, have established him as a prominent inventor. His patents reflect a deep understanding of the complexities involved in data storage, and his work continues to influence the industry.