Chun-Fa Chang

Title: Innovations of Chun-Fa Chang

Introduction

Chun-Fa Chang is a notable inventor based in Durham, NC, who has made significant contributions to the field of graphics data processing. With a total of two patents to his name, his work focuses on methods and apparatuses that enhance the way colors are composited in images.

Latest Patents

Chun-Fa Chang's latest patents include a "Method and apparatus for compositing colors of images using pixel fragments with Z and Z gradient parameters." This invention involves a graphics data processing apparatus that utilizes a graphics memory to store pixel fragment values. When a new fragment becomes visible, it can either replace or combine with an existing fragment value, allowing for more accurate color determination. The Z-depth and Z gradient information stored with each fragment help in deciding which fragments to keep or discard.

Another significant patent is the "Method and apparatus for compositing colors of images with memory constraints for storing pixel data." This invention addresses the challenge of determining pixel colors in a graphics system where multiple fragments may be visible. It outlines strategies for managing fragment values, including selecting which values to discard based on Z-depth or color difference, ensuring efficient memory usage while maintaining image quality.

Career Highlights

Chun-Fa Chang has worked with prominent companies in the technology sector, including Digital Equipment Corporation and Compaq Information Technologies Group, L.P. His experience in these organizations has contributed to his expertise in graphics processing and innovation.

Collaborations

Throughout his career, Chun-Fa Chang has collaborated with notable individuals such as Norman Paul Jouppi and Joel James McCormack. These collaborations have likely enriched his work and led to advancements in the field.

Conclusion

Chun-Fa Chang's contributions to graphics data processing through his innovative patents demonstrate his significant impact on the industry. His work continues to influence how images are processed and displayed, showcasing the importance of innovation in technology.