Tracking radio frequency identification tags
US7579951B2 · kind B2 · utility
6Cited by
19References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2005 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Mar 26, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2462
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A container assembly for tracking a radio frequency identification tag (20) generally includes at least one container (22), an RFID tag (24) associated with the container, and an RFID signal transmitter (26) associated with the radio frequency identification tag. The RFID signal transmitter is capable of transmitting an RFID response signal (1044). The assembly further includes a tracking signal transmitter (28) associated with the RFID signal transmitter. The tracking signal transmitter is capable of transmitting a tracking signal (1046), and the tracking signal is different at least in part from the RFID signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.