Sirius Satellite Radio Inc.

Robert A Nelson

Robert D Briskman

Satellite audio broadcasting systems include orbital constellations for providing high elevation angle coverage of audio broadcast signals from the constellation's satellites to fixed and mobile receivers within service areas located at geographical latitudes well removed from the equator.

Efficient high latitude service area satellite mobile broadcasting systems

A satellite audio broadcasting system for mobile and fixed receivers at or near the earth's surface in geographic service areas at latitudes above about 30 degrees N or below about 30 degrees S include a satellite constellation of two or more satellites, each in its own geosynchronous orbit, with each orbit having orbital parameters that provide elevation angles of more than 35 degrees throughout the service area.

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Bethesda, MD, United States of America

Robert A Nelson