Yue Chao

Title: Innovations of Yue Chao in Phase-Locked Loop Technology

Introduction

Yue Chao is a prominent inventor based in San Diego, California, known for her significant contributions to the field of phase-locked loop (PLL) technology. With a total of eight patents to her name, she has made remarkable advancements that enhance the performance and efficiency of electronic systems.

Latest Patents

Among her latest patents is the "Tuning voltage tracker for receive/transmit phase-locked loop (PLL) fast switching." This invention focuses on methods and apparatus for storing a control voltage of a PLL when switching from mission mode to standby mode, and for restoring the control voltage when returning to mission mode. The PLL circuit includes a charge pump, a voltage-controlled oscillator (VCO), and a tracking circuit that samples and saves the voltage during mission mode, ensuring a seamless transition back to operational status.

Another notable patent is the "Differential digital-to-time converter for even-order INL cancellation and supply noise/disturbance rejection." This invention provides a method for quantization noise cancellation in a PLL, utilizing a phase detector and a delta-sigma modulator (DSM) error signal to adjust time delays for improved signal integrity.

Career Highlights

Yue Chao is currently employed at Qualcomm Incorporated, a leading company in wireless technology and telecommunications. Her work at Qualcomm has positioned her as a key player in the development of advanced PLL systems,