RFID printer and antennas

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C235S432000

Reexamination Certificate

active

07843344

ABSTRACT:
A shielded antenna system is provided for reading from and/or writing to an RFID transponder wherein the RF 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 is read from and/or written to without affecting or being affected by any other RFID transponder along the web. It is preferred to provide shielding that enables more energy to be radiated in the upstream direction from the antenna than in the downstream direction from the antenna to provide for earlier reading and/or writing to the transponder in the moving web. The shielding is selectively configured and/or positionable to narrow or broaden the RF energy field of the antenna.

REFERENCES:
patent: 4408906 (1983-10-01), Wallace
patent: 5081458 (1992-01-01), Meunier
patent: 5524993 (1996-06-01), Durst
patent: 5833377 (1998-11-01), Keller
patent: 5850187 (1998-12-01), Carrender et al.
patent: 6104291 (2000-08-01), Beauvillier et al.
patent: 6246326 (2001-06-01), Wiklof et al.
patent: 6327972 (2001-12-01), Heredia et al.
patent: 6409401 (2002-06-01), Petteruti
patent: 6481907 (2002-11-01), Banach
patent: 6677852 (2004-01-01), Landt
patent: 6848616 (2005-02-01), Tsirline
patent: 6899476 (2005-05-01), Barrus et al.
patent: 6922173 (2005-07-01), Anderson
patent: 6943678 (2005-09-01), Murhead
patent: 7180627 (2007-02-01), Moylan
patent: 7190270 (2007-03-01), Brown et al.
patent: 7439858 (2008-10-01), Feltz et al.
patent: 7439861 (2008-10-01), Feltz et al.
patent: 2001/0029857 (2001-10-01), Heredia et al.
patent: 2004/0100381 (2004-05-01), Waters
patent: 2004/0178267 (2004-09-01), Tsirline
patent: 2005/0058483 (2005-03-01), Chapman
patent: 2005/0116034 (2005-06-01), Satake et al.
patent: 2005/0274800 (2005-12-01), Chapman
patent: 2005/0280537 (2005-12-01), Feltz et al.
patent: 2006/0104689 (2006-05-01), Marowski et al.
patent: 2006/0221363 (2006-10-01), Roth et al.
patent: 2007/0200710 (2007-08-01), Feltz et al.
patent: 2008/0150720 (2008-06-01), Feltz et al.
patent: 2008/0303722 (2008-12-01), Feltz et al.
patent: 2009/0189770 (2009-07-01), Wirrig et al.
patent: 8-124356 (1996-05-01), None
patent: 2003140548 (2003-05-01), None
patent: 2003208573 (2003-07-01), None
patent: 2004-110994 (2004-04-01), None
patent: 2005-107991 (2005-04-01), None
patent: 2005-186567 (2005-07-01), None
patent: 2006-000936 (2006-01-01), None
patent: 2006-004150 (2006-01-01), None
patent: 2007-213298 (2007-08-01), None
patent: WO2005028203 (2005-03-01), None
U.S. Appl. No. 10/660,856, filed Sep. 2003, Chau.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

RFID printer and antennas does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with RFID printer and antennas, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and RFID printer and antennas will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4222658

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.