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. 27, 2021
Filed:
Aug. 07, 2018
Western Digital Technologies, Inc., San Jose, CA (US);
Cory Lappi, Rochester, MN (US);
William Jared Walker, Rochester, MN (US);
Xin Chen, Rochester, MN (US);
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Abstract
The present disclosure generally relates to using a single firmware slot in a slower boot media while temporarily leveraging high speed media and dual boot designs to allow booting into a cached copy of firmware to guarantee power safety while writing the single firmware slot on the slower boot media. The device boots up with original firmware stored in a first non-volatile memory device when powered on. The device then checks a second non-volatile memory device for new firmware. If there is new firmware stored in the second non-volatile memory device, the device loads the new firmware into a volatile memory device and reboots with the new firmware. The device then writes the new firmware to the firmware slot of the first non-volatile memory device. If the device experiences a power cycle while writing the new firmware, the device can reboot with a cached copy of the new firmware.