Electronic tag authentication device and communication adjustment method with electronic tag
US7388499B2 · kind B2 · utility
2Cited by
9References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 2004 |
| Grant date | Jun 17, 2008 |
| Priority date | — |
| Expiry date | Jul 31, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q3/28
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
The electronic tag authentication device of the present invention authenticates the contents of an electronic tag attached to goods. The electronic tag authentication device comprises an antenna directivity change unit for changing the directivity of an antenna for transmitting/receiving electrical waves in order to authenticate the contents of the electronic tag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.