Blocking contactless personal security device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Dec 7, 2006
app pub date -
Jun 5, 2006
filing date -
Jun 3, 2005
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A blocking Personal Security Device (PSD) is disclosed which is intended to protect the privacy of one or more contactless PSDs present within a common RF field generated by a contactless PSDs RF reader. The blocking PSD is programmed to exploit an anti-collision protocol used by the RF reader. The blocking PSD prevents the RF reader from accessing a contactless PSD within the common RF field by ignoring wait time commands and repeatedly responding to the RF reader's interrogations.
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Family
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