Ray Chang

Title: Ray Chang: Innovator in Telecommunications

Introduction

Ray Chang is a notable inventor based in Irvine, CA, who has made significant contributions to the field of telecommunications. With a total of 2 patents, he has developed innovative solutions that enhance the efficiency and quality of telecommunications services.

Latest Patents

One of Ray's latest patents is focused on the "Generic provisioning of voice over internet protocol (VoIP)." This invention outlines a method for establishing telecommunications services by sending a resynchronization message to a user terminal unit and redirecting it to a customer premises equipment (CPE) unit. The process involves acquiring the configuration server network address, connecting the CPE unit to the specified configuration server, and initializing the CPE unit with subscriber configuration data to establish service.

Another significant patent is related to "Upstream bandwidth estimation." This technique estimates the upstream bandwidth for a modem by sending various-sized packets on roundtrip journeys through the modem. By comparing the roundtrip times, an estimate of the modem's upstream bandwidth can be derived. Alternatively, a block file may be transmitted to a TFTP server, which reports the time needed for the transfer, allowing for an upstream bandwidth estimate that can help manage non-VoIP upstream data traffic to ensure quality of service for VoIP calls.

Career Highlights

Ray Chang is currently employed at Cisco Technology, Inc., where he continues to innovate and contribute to advancements in telecommunications technology. His work at Cisco has positioned him as a key player in the development of cutting-edge solutions that address the evolving needs of the telecommunications industry.

Collaborations

Ray has collaborated with talented individuals such as Luan Dang and Piu Piu Ong, further enhancing the innovative environment at Cisco Technology, Inc. Their combined expertise fosters a culture of creativity and problem-solving, leading to impactful inventions.

Conclusion

Ray Chang's contributions to telecommunications through his patents and work at Cisco Technology, Inc. highlight his role as an influential inventor in the industry. His innovative solutions continue to shape the future of telecommunications services.