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:
Apr. 09, 2019
Filed:
Aug. 31, 2017
Applicant:
Square, Inc., San Francisco, CA (US);
Inventors:
Assignee:
Sqaure, Inc., San Francisco, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06Q 20/34 (2012.01); H04L 9/08 (2006.01); G06Q 20/40 (2012.01); G06Q 20/38 (2012.01); G06Q 20/32 (2012.01); G06F 21/57 (2013.01);
U.S. Cl.
CPC ...
G06Q 20/405 (2013.01); G06F 21/575 (2013.01); G06Q 20/3278 (2013.01); G06Q 20/34 (2013.01); G06Q 20/3829 (2013.01); H04L 9/0891 (2013.01); G06Q 2220/00 (2013.01);
Abstract
A transaction device includes a bootloader that a processing unit executes during device startup. The bootloader causes the processing unit to access values from a persistent memory that are relevant to whether a glitch has occurred on a power supply for the processing unit. Based on the values that are acquired from the persistent memory, the processing unit may implement countermeasures, such as disabling certain device operations or delaying the device booting process.