Patents Assigned to Sqaure, Inc.
  • Processor power supply glitch mitigation
    Patent number: 10255603
    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.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 9, 2019
    Assignee: Sqaure, Inc.
    Inventors: Afshin Rezayee, Malcolm Ronald Smith, Yue Yang