Jingchu He

Title: Innovations of Jingchu He in PLL Circuit Technology

Introduction

Jingchu He is a notable inventor based in Delft, Netherlands. He has made significant contributions to the field of electronics, particularly in the development of phase-locked loop (PLL) circuits. His innovative work has led to the creation of a patent that enhances the generation of modulated carrier signals.

Latest Patents

Jingchu He holds a patent for a PLL circuit and method for generating a modulated carrier signal. This invention includes a digitally controlled oscillator (DCO) that generates the modulated signal. The PLL circuit receives a desired phase change as a modulation signal at each cycle of a non-uniform clock, which is derived from the DCO output and a uniform reference clock. The phase change adjusts the DCO's frequency, while a frequency control word represents the ratio of the desired carrier frequency to the reference clock frequency. The circuit accumulates the phase change and frequency control word to predict the DCO's output phase. Additionally, a non-uniform clock compensation circuit calculates a compensation value for the phase change. A phase detector estimates the error between the predicted phase and the time offset between the reference clock and DCO output, generating a control signal for the DCO based on this error.

Career Highlights

Jingchu He is currently employed at Sony Semiconductor Solutions Corporation, where he continues to innovate in the field of semiconductor technology. His work has been instrumental in advancing the capabilities of PLL circuits, which are essential in various electronic applications.

Collaborations

Jingchu He has collaborated with notable colleagues, including Zhong Gao and Masoud Babaie. Their combined expertise has contributed to the successful development of advanced technologies in their field.

Conclusion

Jingchu He is a prominent inventor whose work in PLL circuit technology has made a significant impact in the electronics industry. His innovative patent demonstrates his commitment to advancing technology and improving electronic signal processing.