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:
Jun. 14, 2011
Filed:
Oct. 14, 2007
Steven Mark Groff, Tucson, AZ (US);
Larry Juarez, Tucson, AZ (US);
Joseph Dean Ohrazda, Tucson, AZ (US);
Kenny Nian Gan Qiu, Tucson, AZ (US);
Steven Mark Groff, Tucson, AZ (US);
Larry Juarez, Tucson, AZ (US);
Joseph Dean Ohrazda, Tucson, AZ (US);
Kenny Nian Gan Qiu, Tucson, AZ (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method to detect component removal while operating in a battery backup mode, comprising providing power from a battery backup unit (BBU) to a control card memory device, and measuring the current drawn by the control card memory device. If the current drawn by the control card memory device is less than or equals a pre-determined disconnect current, the method determines if a BBU release pin has been asserted. If the BBU release pin has been asserted, the method encodes in an event log a battery backup removal event. If the BBU release pin has not been asserted, the method encodes in the event log a control card removal event.