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:
Aug. 16, 2005
Filed:
Jan. 22, 2002
Kifumi Numata, Yokohama, JP;
Kazunobu Umeda, Machida, JP;
Yohichi Miwa, Yokohama, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for switching between boot devices in an information processing unit devoid of a human machine interface for inputting, the steps of short-circuiting an output port and an input port, outputting a verification signal from the output port at the time of powering on or restarting the information processing unit, determining whether or not the verification signal is input to the input port, switching the OS boot source to a second boot device if the verification signal is input to the input port, and switching the OS boot source to a first boot device if the verification signal is not input to the input port, is provided for.