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:
Jan. 17, 2017
Filed:
Aug. 14, 2015
Qualcomm Incorporated, San Diego, CA (US);
Vishal Agarwal, San Diego, CA (US);
Mahadevan Srinivasan, San Diego, CA (US);
QUALCOMM INCORPORATED, San Diego, CA (US);
Abstract
In some examples, compensating for hysteretic characteristics of a crystal oscillator in a timing circuit includes obtaining a plurality of successive temperature measurements. From the plurality of successive temperature measurements, a temperature gradient having a sign and a magnitude can be determined. A frequency compensation parameter can then be determined based on any combination of two or more factors chosen from a set of factors including a temperature measurement, the sign of the temperature gradient, and the magnitude of the temperature gradient. A frequency error of the timing circuit can then be compensated based on the frequency compensation parameter.