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. 15, 2020
Filed:
Aug. 14, 2019
Applicant:
Nxp B.v., Eindhoven, NL;
Inventor:
Ulrich Moehlmann, Moisburg, DE;
Assignee:
NXP B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03L 7/095 (2006.01); H03L 7/093 (2006.01);
U.S. Cl.
CPC ...
H03L 7/095 (2013.01); H03L 7/093 (2013.01);
Abstract
A method for Phase Locked Loop (PLL) lock detection includes determining a phase error by comparing a feedback phase to a reference phase. A frequency error is determined by comparing a feedback frequency to a reference frequency. A lock signal is determined in response to the phase error being less than an upper phase threshold and greater than a lower phase threshold, and the frequency error being less than an upper frequency threshold and greater than a lower frequency threshold.