RFID printer and antennas
US7439858B2 · kind B2 · utility
8Cited by
12References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2004 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Aug 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K17/0025
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A shielded antenna system is provided for reading from and/or writing to an RFID transponder wherein the energy radiated from the antenna system has a narrow beam width so that only one RFID transponder in a record member along a web of record members, each having an RFID transponder, is read from and/or written to without affecting or being affected by any other RFID transponder along the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.