Radio frequency identification device
US7005965B2 · kind B2 · utility
14Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2003 |
| Grant date | Feb 28, 2006 |
| Priority date | — |
| Expiry date | Dec 10, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10039
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a radio frequency identification (RFID) device including a detector and several identification tags. The detector transmits time slot cycle signals, and each of the cycle signals is divided into several slots. The identification tags receive the time slot cycle signal, and each of the tags respectively contains a random generator to generate a random number. Individual identification tag responds to the detector in an assigned time slot corresponding to a random number generated by the random generator in each single time slot cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.