Back to results
US 6,703,972 B2Granted
Apparatus for locating mobile receivers using a wide area reference network for propagating ephemeris
AssigneeGlobal Locate, Inc.
InventorFrank van Diggelen
Life of this patent
Estimating the term…
Abstract
An apparatus for distribution and delivery of global positioning system (GPS) satellite telemetry data using a communication link between a central site and a mobile GPS receiver. The central site is coupled to a network of reference satellite receivers that send telemetry data from all satellites to the central site. The mobile GPS receiver uses the delivered telemetry data to aid its acquisition of the GPS satellite signal. The availability of the satellite telemetry data enhances the mobile receiver's signal reception sensitivity.
Claims4
Apparatus for providing satellite data to a mobile receiver comprising:
- four tracking stations for receiving telemetry data from all satellites in a global positioning system constellation of satellites;
- and
- a communication network for propagating the telemetry data from all the satellites to a data processor.
Dependencies are inferred from the claim text.