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. 10, 2017
Filed:
Sep. 10, 2013
Western Digital Technologies, Inc., Irvine, CA (US);
Shaun Astarabadi, Laguna Niguel, CA (US);
Cass E. Cunningham, Rancho Santa Margarita, CA (US);
Western Digital Technologies, Inc., Irvine, CA (US);
Abstract
Systems and methods for BIOS failover. A processor reset is detected and a timer is set to expire after a predetermined time corresponding to a time to complete loading a first BIOS image from a first BIOS chip. Loading of the first BIOS image is initiated and it is determined whether the first BIOS image loaded successfully before the timer expired. If the timer expires before the first BIOS image is loaded successfully, loading is switched to a second BIOS image from a second BIOS chip. According to another aspect, loading of a first BIOS image from a first BIOS chip is initiated and a reset of a processor is detected. A reset counter is incremented in response to detecting a reset of the processor and loading is switched to a second BIOS image from a second BIOS chip when the reset counter reaches a reset threshold.