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:
Apr. 11, 2017
Filed:
Apr. 03, 2014
Apple Inc., Cupertino, CA (US);
Isaac T. Miller, El Granada, CA (US);
William J. Bencze, Half Moon Bay, CA (US);
Robert W. Brumley, San Mateo, CA (US);
Brent M. Ledvina, San Francisco, CA (US);
Mark L. Psiaki, Brooktondale, CA (US);
Thomas J. Holmes, Palo Alto, CA (US);
Clark E. Cohen, Washington, DC (US);
Apple Inc., Cupertino, CA (US);
Abstract
A system and method of continuous carrier wave reconstruction includes a radio navigation receiver that includes one or more processors, memory coupled to the one or more processors, and an input for receiving a signal from a transmitter. The signal has a phase. The one or more processors are configured to obtain phase lock on the received signal, extract first phase information from the received signal, detect a loss in phase lock on the received signal, and extrapolate second phase information while phase lock is lost using a model of the phase. In some embodiments, the one or more processors are further configured to reconstruct the carrier signal based on the first and second phase information. In some embodiments, the one or more processors are further configured to scale the first and second phase information from a first nominal frequency of the received signal to a different second nominal frequency.