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:
Feb. 09, 2016
Filed:
Aug. 01, 2014
Telefonaktiebolaget L M Ericsson (Publ);
Sami Vilhonen, Lieto, FI;
Telefonaktiebolaget L M Ericsson (publ), Stockholm, SE;
Abstract
Systems and methods for compensating for a known interferer to a Controlled Oscillator (CO) of a Phase-Locked Loop (PLL) are disclosed. In one embodiment, a system includes a PLL and a compensation system. The compensation system is configured to generate a compensation signal based on a complex correlation of an output signal of a phase detector of the PLL and a signal derived from a replica of a known interferer to the CO. The compensation system is further configured to apply the compensation signal to the control signal provided by the low-pass filter of the phase-locked loop to thereby provide the compensated control signal for the CO of the phase-locked loop. In this manner, the compensation system mitigates the known interferer at the CO of the PLL.