DeFu Li

Title: DeFu Li: Innovator in Cable Modem Technology

Introduction

DeFu Li is a notable inventor based in Boxborough, MA (US). He has made significant contributions to the field of telecommunications, particularly in cable modem technology. His innovative work has led to the development of a patent that enhances the efficiency of cable modem systems.

Latest Patents

DeFu Li holds a patent for "Multi-channel ranging for a cable modem." This invention involves a Cable Modem Termination System (CMTS) that sends first bandwidth allocation messages to a first upstream transmit interface on a cable modem. It also sends second bandwidth allocation messages to a second upstream transmit interface on the cable modem. The bandwidth allocation messages indicate transmit windows for the cable modem to range over the interfaces. The transmit windows included in the first bandwidth allocation messages are spaced based on the receipt of ranging requests from the second upstream transmit interface. Similarly, the transmit windows included in the second bandwidth allocation messages are spaced based on the receipt of ranging requests from the first upstream transmit interface. This innovative approach optimizes the performance of cable modems.

Career Highlights

DeFu Li is currently employed at Cisco Technology, Inc., where he continues to work on advancing telecommunications technology. His expertise in cable modem systems has positioned him as a valuable asset to the company.

Collaborations

Throughout his career, DeFu Li has collaborated with talented individuals such as Alon Shlomo Bernstein and Tong Liu. These collaborations have contributed to the development of innovative solutions in the field.

Conclusion

DeFu Li's contributions to cable modem technology through his patent demonstrate his commitment to innovation in telecommunications. His work continues to influence the industry and improve communication systems.