Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-11-09
2008-05-06
Bugg, George (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S010100, C343S838000, C343S841000, C700S214000, C700S215000, C700S217000
Reexamination Certificate
active
07369050
ABSTRACT:
A curtain for a radio frequency identification (RFID) system including a transponder, an antenna, and a reader, the antenna coupled to the reader, the antenna and the reader for transmitting a radio signal to the transponder and for receiving a response radio signal from the transponder, the response radio signal including data from the transponder, the curtain including: a plurality of flexible strips that limit propagation of the radio signal; wherein the strips are transparent to visible light, the long edge of each of the strips is oriented in substantially the vertical direction, more than one strip overlaps a portion of the width of an adjacent strip along the length of the adjacent strip, and the length of each of the strips is substantially greater than the width of each of the strips.
REFERENCES:
patent: 6967579 (2005-11-01), Elizondo
patent: 7187288 (2007-03-01), Mendolia et al.
patent: 2005/0110641 (2005-05-01), Mendolia et al.
De Gennaro Steven V.
Duri Sastry S.
Moskowitz Paul A.
Bugg George
Cantor & Colburn LLP
International Business Machines - Corporation
Walk Samuel J.
Wardas Mark
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