Shiva S Sarrafan

Title: **Shiva S Sarrafan: Innovator in Satellite Communication Systems**

Introduction

Shiva S Sarrafan, based in Issaquah, WA, is a notable inventor with a focus on advancements in satellite communication technologies. With a portfolio of three patents, Sarrafan exemplifies the spirit of innovation in the modern technology landscape.

Latest Patents

Shiva's latest patents showcase groundbreaking concepts in low-earth orbit satellite technology. The first patent presents a **Low-earth orbit satellite acquisition and synchronization system** that fundamentally improves how satellites communicate with ground terminals. This system allows for efficient searching and acquisition of satellite beacons, facilitating accurate data transmission. The process begins when the ground terminal predicts the satellite's location based on previous information, enabling a targeted search area.

Once a satellite beacon is acquired, the system determines the geographic area it serves and initiates additional searches if necessary. It further optimizes communication times based on how long the satellite will cover the designated area. Key functionalities enable accurate timing for uplink data transmissions and tracking for downlink frequencies, significantly enhancing satellite communication reliability.

Another notable invention is the **method for reducing co-channel or cross-polarization interference** in frequency division multiple access communications systems. This method systematically divides a network's cells and available bandwidth to minimize interference, ensuring a seamless communication experience across multiple channels.

Career Highlights

Shiva S Sarrafan is currently associated with **Teledesic LLC**, where he applies his expertise in satellite communication systems. Teledesic is recognized for its innovative approaches in satellite technology and telecommunications, aiming to provide global internet coverage via low-earth orbit satellites. Sarrafan's contributions are integral to the company's mission of advancing connectivity.

Collaborations

Throughout his career, Sarrafan has collaborated with talented individuals such as Sami M Hinedi and Farzad Ghazvinian. Working alongside them, he has contributed to the development of technology that pushes the boundaries of current communication systems, fostering an environment of creative collaboration in engineering and innovation.

Conclusion

Shiva S Sarrafan stands out as a leading inventor in the satellite communication field, continuously working on emerging technologies that promise to enhance global connectivity. His innovative patents reflect a deep understanding of challenges in satellite operations and commitment to solving them. As the landscape of communication technology evolves, inventors like Sarrafan play a critical role in shaping the future.