John H Brownlee

Title: Innovations of John H Brownlee

Introduction

John H Brownlee is a notable inventor based in Tucker, Georgia, with a significant contribution to the field of telecommunications. He holds four patents that showcase his expertise in advanced data transmission technologies. His work primarily focuses on improving the efficiency and reliability of data communication systems.

Latest Patents

One of his latest patents is the "DQPSK transmitter with parallel precoder and high-speed DQPSK data stream realignment." This invention utilizes field programmable gate arrays (FPGAs) to implement a parallel differential quadrature phase shift keying (DQPSK) precoder and a DQPSK optical transmitter with an automatic realignment process. The invention can perform DQPSK preceding, modulation, and data stream realignment at any lower rate, with its upper rate determined by the speed and logic resources of available integrated circuit technology.

Another significant patent is the "System and method for an adaptable timing recovery architecture for critically-timed transport applications." This invention provides a timing recovery architecture and circuit for recovering clock timing from a received signal in critically-timed transport applications. It addresses network-induced clock jitter and wander that can occur during asynchronous mapping techniques and traditional pointer adjustment schemes. The timing recovery circuit can be implemented in programmable digital FPGA logic or standard cell or gate-array ASIC technology.

Career Highlights

John H Brownlee is currently employed at Ciena Corporation, where he continues to innovate in the telecommunications sector. His work has contributed to advancements in data transmission technologies, making significant impacts on the industry.

Collaborations

Throughout his career, John has collaborated with notable colleagues, including Donald J Miller and Jun Bao. These collaborations have further enhanced his contributions to the field.

Conclusion

John H Brownlee's innovative patents and contributions to telecommunications demonstrate his expertise and commitment to advancing technology. His work continues to influence the industry and improve data communication systems.