Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2007-12-18
2007-12-18
Swarthout, Brent A. (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S010100, C340S870030
Reexamination Certificate
active
11099569
ABSTRACT:
According to the present invention, the attitude of the article with the RF tag can be automatically detected by detecting the attitude of the directional antenna of the RF tag relative to that of the directional antenna of the RF tag attitude detection apparatus based on the signal intensity of the radio signal received from the RF tag.
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patent: 2002-271229 (2002-09-01), None
patent: 2003-101550 (2003-04-01), None
Birch & Stewart Kolasch & Birch, LLP
Fujifilm Corporation
Swarthout Brent A.
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