Article: California Inventor Develops Navigation Satellite Receivers Operation System

ALEXANDRIA, Va., Aug. 21 -- Paul W. McBurney and Frederic Vaucher, both of San Francisco, have developed a method for operating navigation satellite receivers.

According to a description of the invention, released by the U.S. Patent & Trademark Office: "The present invention relates to navigation satellite receivers, and more particularly to methods and systems for operating navigation satellite receivers with less than a full ephemeris almanac."

The inventors were issued U.S. Patent No. 7,415,353 on Aug. 19.

The patent has been assigned to Seiko Epson Corp., Tokyo, and eRide Inc., San Francisco. The original application was filed on May ...

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