Method and apparatus to perform a predefined search on data carriers, such as RFID tags
US6286762A · kind A · utility
103Cited by
5References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Sep 21, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K7/10386
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A data carrier reader is capable of executing a number of different reading methods. One method performs an inclusive search, identifying all RFID tags having a characteristic data string that appears on a list of characteristic data strings, for example, stored in a buffer. Another method performs and exclusive search, identifying any RFID tags having a characteristic data string that does not appear on the list. In each method, the data carrier reader provides a consistent and intuitive output the user to identify the successful and unsuccessful operations such as locating a desired RFID tag on the list or missing from the list.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.