RFID tags circuits and methods for sensing own power to predetermine feasibility of requested action
US7733227B1 · kind B1 · utility
27Cited by
2References
76Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2007 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Nov 23, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/07749
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Feasibility of a requested action by a reader is predetermined in an RFID tag based on an available tag power level. A pretest that is designed to consume artificially high levels of power is performed and the power level monitored to determine if a preset condition is met. The pretest may include activation of selected components such as a memory and associated support circuitry. If the preset condition is not met, the requested action is aborted and an error message transmitted to the reader.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.