The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2014
Filed:
Apr. 05, 2012
Rohan Yash Ramlall, Brentwood, CA (US);
Rohan Yash Ramlall, Brentwood, CA (US);
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Abstract
A GPS carrier-tracking method comprising: acquiring a GPS signal from a satellite with a receiver in acquisition mode when the signal strength of the GPS signal is equal to or above a carrier/noise (C/N) threshold; tracking the carrier frequency of the GPS signal while the receiver in a tracking mode when the signal strength of the GPS signal is above the C/Nthreshold; recording carrier frequency values while the receiver is in tracking mode; predicting a current Doppler shift based on the recorded values when the signal strength of the GPS signal drops below the C/Nthreshold for a time period t; and resuming, without the receiver re-entering acquisition mode, tracking of the GPS signal after time t and once the signal strength of the GPS signal is again equal to or above the C/Nthreshold, wherein the resumed tracking is based on the predicted Doppler shift.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile