Method and apparatus for detecting component removal while operating in a battery backup mode
US7962776B2 · kind B2 · utility
2Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2007 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Apr 11, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/28
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.