Minimum voltage radio frequency indentification
US5945920A · kind A · utility
55Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1997 |
| Grant date | Aug 31, 1999 |
| Priority date | — |
| Expiry date | Dec 10, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A radio frequency identification device (RFID) which permits various read and write operations at various voltage levels. Certain read operations are permitted as soon as the voltage level in the RFID is sufficient for the circuitry to switch. Errors during such operations are accounted for by retry attempts. Security related operations require higher voltage levels which ensure higher reliability in such operations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.