Obtaining pseudorange information using a cellular device
AssigneeTrimble Inc.
InventorsRichard Rudow, Venkateswaran Kasirajan, Robert Wold, James M. Janky
Life of this patent
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Abstract
The cellular device accesses a GPS/GNSS chipset embedded within the cellular device. The GPS/GNSS chipset calculates pseudorange information for use by the GPS/GNSS chipset. The cellular device extracts the pseudorange information from the GPS/GNSS chipset for use elsewhere in the cellular device outside of the GPS/GNSS chipset.
Claims18
A mobile device comprising:
- memory coupled with a bus;
- a Global Positioning System/Global Navigation Satellite System (GPS/GNSS) embedded receiver coupled with the bus;
- a communications system coupled with the bus;
- and
- one or more processors coupled with the bus, wherein the the one or more processors are configured to:
- send a message to the GPS/GNSS embedded receiver to initiate an E911 activity,
- receive pseudorange information provided by the E911 activity,
- send a second message to the GPS/GNSS embedded receiver to cancel the E911 activity before transmission of the pseudorange information external to the mobile device, and
- determine a position fix of the mobile device based on the pseudorange information.
A method for obtaining pseudorange information using a mobile device that includes an embedded Global Positioning System/Global Navigation Satellite System (GPS/GNSS) receiver and one or more processors outside the GPS/GNSS receiver, the method comprising:
- initiating, performed by the one or more processors, an E911 operation to obtain the pseudorange information from the GPS/GNSS receiver of the mobile device;
- receiving, at the one or more processors, the pseudorange information from the GPS/GNSS receiver;
- preventing, performed by the one or more processors, the pseudorange information from being sent external to the mobile device by terminating the E911 operation, and
- determining, performed by the one or more processors, a location of the mobile device based on the pseudorange information.
Dependencies are inferred from the claim text.