RFID printer and antennas

Details RFID printer and antennas RFID printer and antennas

2007-04-23

2008-10-21

Tweel, Jr., John A (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C235S432000

Reexamination Certificate

active

07439861

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.

REFERENCES:
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patent: 6943678 (2005-09-01), Murhead
patent: 2001/0029857 (2001-10-01), Heredia et al.
patent: 2004/0032443 (2004-02-01), Moylan
patent: 2004/0178267 (2004-09-01), Tsirline
U.S. Appl. No. 10/660,856, Chau.

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