Der-Chang Hsieh

Title: Der-Chang Hsieh: Innovator in Optical Disc Technology

Introduction

Der-Chang Hsieh is a notable inventor based in Cupertino, CA, who has made significant contributions to the field of optical disc technology. With a total of 3 patents to his name, Hsieh has developed innovative methods that enhance data storage and retrieval processes.

Latest Patents

Hsieh's latest patents include a "Method and apparatus for pre-compensation in an optical disc." This invention provides an improved data mark formation on an optical disc by varying the amplitude of a laser write beam during the application of the mark. Additionally, the illumination period of the laser is adjusted to account for discrepancies between the actual and desired lengths of data marks. Another significant patent is the "System and method for erasing light-responsive optical disks." This system allows for the erasure of data on optical storage disks by utilizing a linear light source that projects a curtain of light with specific characteristics. The method ensures uniform erasure by modifying the light flux delivered to the disk based on its distance from the center.

Career Highlights

Hsieh is currently employed at Tandy Corporation, where he continues to innovate in the realm of optical technologies. His work has been instrumental in advancing the capabilities of optical storage systems.

Collaborations

Hsieh has collaborated with several talented individuals, including Hai-Hoa Van and Joel D. Finegan, contributing to a dynamic and innovative work environment.

Conclusion

Der-Chang Hsieh's contributions to optical disc technology through his patents and work at Tandy Corporation highlight his role as a key innovator in the field. His inventions continue to influence the way data is stored and erased, showcasing the importance of innovation in technology.