Ellen Chen Yeh

Title: Ellen Chen Yeh: Innovator in Delay Locked Loop Technology

Introduction

Ellen Chen Yeh is a prominent inventor based in Hsinchu Hsien, Taiwan. She has made significant contributions to the field of electronics, particularly in the development of delay locked loop (DLL) circuits. Her innovative work has led to the filing of a patent that showcases her expertise and creativity in this area.

Latest Patents

Ellen holds a patent for a "Semi-digital delay locked loop circuit and method." This invention features a scalable DLL circuit equipped with a calibration mechanism that automatically tunes locking precision. The circuit includes a multi-phase phase locked loop for generating multiple phase signals based on a system clock, with one of these signals serving as a pixel clock. The design incorporates a phase detector that identifies both integral and fractional phase errors between a reference signal and a feedback signal. Additionally, a phase selector chooses one of the phase signals based on the fractional phase error, while a delay circuit adjusts the phase of the reference signal according to the integral phase error and the selected phase signal to produce an output signal.

Career Highlights

Ellen is currently employed at Mstar Semiconductor, Inc., where she continues to push the boundaries of technology through her innovative designs. Her work has not only advanced the field of electronics but has also contributed to the success of her company.

Collaborations

Ellen collaborates with talented individuals such as Sterling Smith and Wen Cai Lu, who contribute to her projects and enhance the innovative environment at Mstar Semiconductor.

Conclusion

Ellen Chen Yeh is a remarkable inventor whose work in delay locked loop technology exemplifies her dedication to innovation. Her contributions continue to impact the electronics industry positively.