Automatic mode detection in a dual operating mode RFID tag
US9313559B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2013 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Nov 26, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q5/22
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multi-mode, preferably dual mode, radio frequency identification (RFID) tag is adapted for automatic detection of whether a RFID reader located within communication range of the RFID tag is transmitting a continuous wave (CW) or modulated wave types of RF signal, and accordingly, mandating a response from the tag in read-only (RO) mode or read/write (R/W) mode, respectively. The tag includes means for designating one of the RO and R/W operating modes as a default mode of the tag, and for switching the tag from its default mode to its other operating mode, and vice versa, according to a rule for determining the frequency of occurrence of a selected event related to signal type of the reader. A device-implemented method of this automatic detection, and a method of fabricating the tag, are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.