Computer with cover removal detection
US6862188B2 · kind B2 · utility
3Cited by
6References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | Mar 5, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F1/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A computer uses an optical reflective optical sensor to detect the removal of a cover of the computer housing. The reflective optical sensor includes a light emitter and a light detector, and is mounted adjacent a reflective surface on the inner side of the cover when the cover is in place such that the light emitter is reflected by the reflective surface and received by the light detector. When the cover is removed, the intensity of the reflected light received by the light detector drops. The change in the output of the light detector triggers the operating system of the computer to power down the computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.