Radio frequency tagging for indicia printing and product information
US7107836B2 · kind B2 · utility
24Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 19, 2003 |
| Grant date | Sep 19, 2006 |
| Priority date | — |
| Expiry date | Dec 19, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0717
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for detecting a level of a content in a vessel using an RFID tag. In one embodiment, an RFID tag located on one side of the vessel opposite a side on which the reader is, is interrogated. A reply signal, if any, received from the RFID tag is interpreted to determine the information returned from the RFID tag. The level of the content in the vessel is determined based on the information received from the RFID tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.