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:
Sep. 27, 2022
Filed:
Aug. 02, 2021
Applicant:
Commscope Technologies Llc, Hickory, NC (US);
Inventor:
Stuart D. Sandberg, Acton, MA (US);
Assignee:
CommScope Technologies LLC, Hickory, NC (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/06 (2006.01); H03M 1/06 (2006.01); H04J 3/06 (2006.01); H04L 7/033 (2006.01);
U.S. Cl.
CPC ...
H03L 7/06 (2013.01); H03M 1/0624 (2013.01); H04J 3/0682 (2013.01); H04L 7/0334 (2013.01);
Abstract
In one embodiment, a local clock is synchronized to a master clock using a Kalman filter to determine state variables using a state transition matrix that includes at least one coefficient that is associated with a digital-to-analog converter (DAC), where the state variables include a unit step variable indicative of a unit step for the system. The local clock is controlled based on the state variables determined using the Kalman filter. The unit step is indicative of an amount by which the frequency of the local clock signal changes in response to a change in the digital input of the DAC.