Optical chassis intrusion detection with power on or off
US6388574B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1996 |
| Grant date | May 14, 2002 |
| Priority date | — |
| Expiry date | Dec 24, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/1481
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An optical intrusion detection system includes an electromagnetic radiation detector located within the chassis of a personal computer or the like. The EM detector, such as a photodiode or phototransistor, detects EM radiation when the chassis is opened (allowing a person to modify or remove the contents thereof). The EM detector sends a detection signal to a latching mechanism that latches the signal and maintains the signal even after the chassis is closed. A detection component is provided which supplies the detection signal as a data signal to a network administrator terminal coupled to the personal computer where the optical intrusion detection system is installed. A feature of the detection system of the present invention is that intrusion into the chassis is detected silently and without alerting the individual opening the chassis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.