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. 12, 2022
Filed:
Feb. 26, 2020
Ciena Corporation, Hanover, MD (US);
Ciena Corporation, Hanover, MD (US);
Abstract
Systems and methods of storing phase history, and enhancing and restoring phase accuracy for a embedded Global Navigation Satellite System (GNSS) receiver include storing a phase history of the GNSS receiver output; determining an expected value of phase of the GNSS receiver output based on the phase history; and, responsive to a degradation of the GNSS receiver output, adjusting the GNSS receiver output utilizing the expected value of phase. The systems and method can further include, responsive to degradation being a loss of the GNSS receiver output, utilizing a holdover output from a physical frequency reference and with a phase adjusted based on the expected value of phase, and, responsive to the variation, utilizing the phase history to re-generate the GNSS receiver output for performance enhancement.