Ken Kun-Yung Chang

Title: Ken Kun-Yung Chang: Innovator in Driver Technology

Introduction

Ken Kun-Yung Chang is a notable inventor based in Los Altos, California. He has made significant contributions to the field of driver technology, particularly with his innovative patent that supports multiple signaling modes. His work is instrumental in enhancing the performance and efficiency of electronic devices.

Latest Patents

Ken Kun-Yung Chang holds a patent titled "Driver supporting multiple signaling modes." This invention allows a driver to support both differential and single-ended signaling modes. The design incorporates complementary transistors with a common tail node, which are provided with complementary input signals in the differential mode. A current source coupled to the tail node maintains a relatively high tail impedance and a constant tail current in the differential mode. In single-ended modes, the tail node is set to a low impedance to decouple the two transistors, enabling them to amplify uncorrelated input signals. The current source adjusts multiple current levels in the single-ended mode to compensate for changes in tail current that arise from variations in the uncorrelated data. Additionally, a termination block provides necessary termination resistance in the differential mode and pull-up transistors in a single-ended mode that employs push-pull drivers.

Career Highlights

Ken Kun-Yung Chang is currently employed at Rambus Inc., where he continues to innovate and develop advanced technologies. His expertise in driver technology has positioned him as a key contributor to the company's research and development efforts.

Collaborations

Throughout his career, Ken has collaborated with talented individuals such as Kashinath Ullhas Prabhu and Hae-Chang Lee. These collaborations have further enriched his work and contributed to the advancement of technology in his field.

Conclusion

Ken Kun-Yung Chang is a distinguished inventor whose work in driver technology has made a significant impact. His innovative patent demonstrates his commitment to advancing electronic signaling methods. His contributions continue to influence the industry and pave the way for future innovations.