Fei Xu

Title: Fei Xu: Inventor of Charging and SIM Card Communication Technologies.

Introduction

Fei Xu is an inventor based in Shenzhen, China, whose patent work includes charging systems and SIM card communication technology. His listed portfolio includes 2 patents, and he works at Honor Device Co., Ltd.

Latest Patents

Xu’s listed patents address two functions in electronic devices: managing battery charging and switching between physical and embedded SIM cards.

“Charging circuit, charging control method, and electronic device” describes a circuit with two charging chips and switches. One chip supports a fast-charging protocol, while the controller and charging components coordinate the connection between a charger and a battery. The first charging chip communicates with the charger to determine whether it supports fast charging.

“SIM card communication circuit, related apparatus, and control method” describes a processor-controlled arrangement that connects a device to either a physical SIM card or an eSIM. In response to different messages, the processor enables the appropriate level-conversion apparatus or eSIM chip and disables the other, selecting the desired SIM connection.

Career Highlights

Xu’s listed inventions focus on practical electronic-device functions. His charging patent concerns fast-charging compatibility and circuit control, while his SIM card patent concerns switching between physical and embedded subscriber identity modules.

Collaborations

Xu’s listed coworkers include Ting Huang and Yingqun Feng. His work is associated with Honor Device Co., Ltd.

Conclusion

Fei Xu’s patent portfolio reflects work on charging control and flexible SIM connectivity for electronic devices.