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, 2016
Filed:
Jun. 18, 2015
Qualcomm Incorporated, San Diego, CA (US);
Mohammad Bagher Vahid Far, San Jose, CA (US);
Ara Bicakci, Belmont, CA (US);
Alireza Khalili, Sunnyvale, CA (US);
Ashkan Borna, Menlo Park, CA (US);
Thinh Cat Nguyen, San Jose, CA (US);
Qualcomm Incorporated, San Diego, CA (US);
Abstract
Certain aspects of the present disclosure provide methods and apparatus for compensating, or at least adjusting, for capacitor leakage. One example method generally includes determining a leakage voltage corresponding to a leakage current of a capacitor in a filter for a phase-locked loop (PLL), wherein the determining comprises closing a set of switches for discontinuous sampling of the leakage voltage; based on the sampled leakage voltage, generating a sourced current approximately equal to the leakage current; and injecting the sourced current into the capacitor.