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:
Dec. 24, 2019
Filed:
Aug. 02, 2017
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 23/02 (2006.01); G01R 31/317 (2006.01); G01R 23/10 (2006.01); G01R 23/15 (2006.01); G01R 35/00 (2006.01); G01R 23/14 (2006.01); G01R 23/00 (2006.01);
U.S. Cl.
CPC ...
G01R 23/02 (2013.01); G01R 23/10 (2013.01); G01R 23/15 (2013.01); G01R 31/31727 (2013.01); G01R 35/005 (2013.01); G01R 23/005 (2013.01); G01R 23/14 (2013.01);
Abstract
In certain aspects of the disclosure, a frequency monitor includes a counter configured to receive a monitored clock signal, to count a number of periods of the monitored clock signal over a predetermined time duration, and to output a count value corresponding to the number of periods of the monitored clock signal. The frequency monitor also includes a comparator configured to receive the count value from the counter, to receive an expected count value, to compare the count value from the counter with the expected count value, and to output a pass status signal or a fail status signal based on the comparison.