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. 29, 2019
Filed:
Mar. 24, 2016
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G01R 15/09 (2006.01); G01R 31/40 (2014.01);
U.S. Cl.
CPC ...
G01R 15/09 (2013.01); G01R 31/40 (2013.01);
Abstract
An apparatus for detecting a change in a voltage level of a power supply is disclosed. An inverter coupled to a first power supply may generate a signal dependent upon a voltage level of a second power supply. A latch coupled to the first power supply may be set based on a first voltage level of the second power supply and a first value of the signal, and re-set based on a second voltage level of the second power supply and a second value of the signal different than the first value of the signal.