Farhad Hemmati

Title: **Innovative Mind: The Patents of Farhad Hemmati**

Introduction

Farhad Hemmati, based in Darnestown, MD, is a notable inventor with a remarkable portfolio comprising nine patents. His contributions primarily revolve around advancements in communication systems and decoders, showcasing his expertise in enhancing the reliability and efficiency of data transmission.

Latest Patents

Among his latest innovations is a patent titled "Method for implementing shared channel decoder for onboard processing satellites." This invention details a decoding method and apparatus that employs the Viterbi algorithm to select survivor paths on each trellis state, facilitating the realization of a shared channel decoder (SCD). The inventive shared channel decoder includes a branch metric calculator for calculating branch metrics, multiple ACS units for computing and exchanging new path metrics and survivor paths, and RAM for storing these metrics. Noteworthy features include a branch metric queue, a tentative path metric memory, and a multiplexer for optimized performance based on the decoding step.

Another significant patent is related to "Communication systems using nested coder and compatible channel coding." This innovation focuses on a communication network designed to ensure reliable voice communications, especially in mobile applications across land, air, and maritime systems. The invention integrates a nested codec with a channel coder to maintain a constant transmission rate that adapts voice reconstruction to varying channel conditions, automatically adjusting the bit rates based on the signal quality detected by the receiver.

Career Highlights

Farhad Hemmati has had a distinguished career working with leading organizations in the field. He has contributed his expertise at Comsat Corporation and Communications Satellite Corporation, where he applied his innovative thinking to solve complex communication challenges.

Collaborations

Throughout his career, Hemmati has collaborated with notable individuals such as Spiros S Dimolitsas and Roderick James Ragland. Together, they have worked on various projects that have significantly advanced the field of communications technology.

Conclusion

Farhad Hemmati's contributions to the field of communications are immense, as exemplified by his nine patents. His innovative approaches to decoding methods and communication systems not only enhance efficiency but also contribute to the reliability of voice communications in diverse applications. As technology continues to evolve, inventors like Hemmati undoubtedly play a crucial role in shaping the future of communication.