Dual frequency radio tag for a radio frequency identification system
US7271727B2 · kind B2 · utility
113Cited by
61References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 9, 2005 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Nov 9, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2462
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A dual frequency radio tag for a radio frequency identification system is provided that includes an antenna system and a first receiver coupled to the antenna system. The first receiver receives and processes request signals from a first unit type at a first frequency. A second receiver is coupled to the antenna system and receives and processes request signals from a second unit type at a disparate second frequency. A transmitter is coupled to the antenna system and transmits response signals from the radio tag at the second frequency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.