Xiangqun Sun

Title: Innovations of Xiangqun Sun in Bluetooth Technology

Introduction

Xiangqun Sun is a notable inventor based in Randolph, NJ (US). He has made significant contributions to the field of technology, particularly in Bluetooth applications. With a total of 2 patents, his work has had a considerable impact on the development of communication devices.

Latest Patents

One of Xiangqun Sun's latest patents is a fractional-N baseband frequency synthesizer designed for Bluetooth applications. This innovative baseband clock synthesizer is capable of generating either 12 MHz or 13 MHz clock signals from various reference clock signals. The design includes a fractional-N frequency divider implemented with a phase-locked loop (PLL), which allows for the use of virtually any reference frequency input. This results in a locked 156 MHz clock signal that serves as the basis for the 12 MHz or 13 MHz baseband clock signal. The incorporation of a residue feedback sigma-delta modulator enables the division by non-integer numbers within the PLL, ensuring flexibility and reliability in output clock signals.

Career Highlights

Xiangqun Sun has been associated with Agere Systems Inc., where he has contributed to various projects and innovations. His expertise in frequency synthesis and Bluetooth technology has positioned him as a valuable asset in the field.

Collaborations

Some of his notable coworkers include William Eric Holland and Wenzhe Luo, who have collaborated with him on various projects within the company.

Conclusion

Xiangqun Sun's contributions to Bluetooth technology through his innovative patents demonstrate his expertise and commitment to advancing communication technology. His work continues to influence the development of efficient and reliable devices in the industry.