Radio frequency identification tag arranged for magnetically storing tag state information
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United States of America Patent
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-
Mar 21, 2000
Issued Date -
N/A
app pub date -
Mar 12, 1998
filing date -
Oct 11, 1995
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A radio frequency identification tag system (10) utilizes a radio frequency identification tag (16) that includes stored tag information. The tag includes an antenna element (30) and a common electrode (28). The antenna element electrostatically receives an exciter signal (34) from a proximately-located electrostatic exciter (12). Upon receiving the exciter signal, the tag becomes energized, thereby causing it to generate a read signal (36) based on the stored tag information. The antenna element then electrostatically sends the read signal to a proximately-located reader (14), which detects the stored tag information. In addition, exactly one of the tag common electrode and the tag antenna element is arranged to magnetically store tag state information. The tag state information represents exactly one state of two possible states and is read by a proximately-located magnetic reader (18).
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