System and method of reading from and/or writing to an RF transponder
US7501932B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2005 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Dec 10, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/0008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
At least one identification (ID) number is used to effectuate communication between a radio frequency (RF) number and a radio frequency identification (RFID) base station. In accordance with a first embodiment of the present invention, at least a first ID number and a second ID number are stored on an RF transponder. Upon receipt of a write request, the RF transponder compares an ID number portion of the write request with the second ID number stored on the RF transponder. If the numbers matched, then a data portion of the write request is stored on the RF transponder. If the ID numbers do not match, then the write request is ignored. In accordance with a second embodiment of the present invention, the RF transponder is adapted to determine the second ID number using at least a portion of the first ID number. For example, the second ID number could be a subset of the first ID number, determined using an algorithm that is based (at least in part) on a portion of the first ID number, etc. In accordance with a third embodiment of the present invention, the second ID number is independent of the first ID number. For example, the second ID number could be a constant that is unrelated to…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.