Protection against loss or theft of identification badges and other items
US7271718B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2005 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Nov 10, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B21/0275
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An exemplary electronic apparatus monitors whether a security badge remains within an area proximate to the electronic apparatus in order to protect against loss or theft of the badge especially when the user is away from the secure environment for which the badge facilitates access. A transmitter periodically transmits a poll signal intended for reception by an RFID module attached to the badge, the poll signal having a predetermined magnitude to limit the effective reception range of the poll signal to the proximate area. A receiver can receive a reply signal generated by the RFID module in response to receipt of the poll signal where the reply signal includes identification information that is unique to the electronic device. The received identification information is compared with first identification information stored in memory of the electronic apparatus to determine if the received identification information matches the first identification information. An alert is transmitted if the identification information is not received that matches the first identification information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.