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:
Mar. 22, 2016
Filed:
Jan. 08, 2013
Lenovo (Singapore) Pte, Ltd., New Tech Park, SG;
Ken Sasaki, Machida, JP;
Eitaroh Kasamatsu, Kawasaki, JP;
Yusaku Morishige, Fujisawa, JP;
Kohsuke Ohtani, Tokyo, JP;
Lenovo (Singapore) PTE. LTD., New Tech Park, SG;
Abstract
Provided is a method for temporarily skipping a secure boot function. A computer is configured so that a secure boot function is set as enabled by default. Depression of a power button of the computer in a power-off state generates a startup signal. At the time of startup from S4/S5 state, a switch is turned ON and PP bit indicating physical presence is set at a register. Depression of a specific key on a keyboard causes DE bit to be set at a register. When PP bit and DE bit are found, UEFI firmware stored in a firmware ROM temporarily skips integrity validation of a boot program only for boot this time.