Usage modification of RFID transponder
US7469126B2 · kind B2 · utility
8Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2004 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Aug 10, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2437
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An RFID transponder is disclosed in which predetermined conductive portions will be removed from the transponder should the transponder be removed from a first object to which it is attached. The transponder has a first response to applied RF before the predetermined portions are removed and a second response after such removal. An RF detector can be used to scan objects with transponders to detect the first or the second response and thereby determine when a transponder has been moved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.