Hong Min Zhang

Title: Innovations by Hong Min Zhang

Introduction

Hong Min Zhang is a notable inventor based in Santa Clara, CA. He has made significant contributions to the field of video signal processing, holding 2 patents that showcase his innovative approach to technology. His work focuses on improving the quality and functionality of video signals, making them more accessible and effective for various applications.

Latest Patents

One of his latest patents is titled "Method and apparatus for converting non-standard video broadcast signals to display capable video signals." This invention addresses the challenges posed by non-standard broadcast television signals. It processes and converts these signals for proper reception and display, ensuring that extra or missing horizontal lines are managed effectively. The technology utilizes a modulo or digital phase lock loop-type circuit to adjust the clock output signal based on the comparison between a standard video signal value and the actual input signal line count value. This innovation allows for a modified clock output signal to serve as a clock input signal for circuits that accept standard video formats. Additionally, it processes non-standard video signals with improper odd-even field sequencing.

Another significant patent by Zhang is the "Fuzzy logic based color transition improvement method and system." This invention employs fuzzy logic to enhance digital color transitions, increasing color sharpness by replacing slow transition color edges with sharper edges that have steeper rising and falling times. The fuzzy logic determines where the transition occurs and how to enhance the signal during the transition. By utilizing input digital color signals and their delayed signals, the output achieves steep and smooth color edges without ringing.

Career Highlights

Hong Min Zhang is currently associated with Ndsp Corporation, where he continues to innovate and develop new technologies. His work has had a profound impact on the field of video processing, and he is recognized for his contributions to improving video signal quality.

Collaborations

Zhang has collaborated with notable colleagues, including Lei He and Cheen Doung, who have contributed to his projects and innovations.

Conclusion

Hong Min Zhang's contributions to video signal processing through his patents demonstrate his commitment to innovation and technology. His work not only enhances the quality of video signals but also paves the way for future advancements in the field.