Wireless tag detection apparatus and method of controlling...

Communications: electrical – Condition responsive indicating system – Specific condition

Reexamination Certificate

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Details

C340S010100, C340S568100, C340S691300

Reexamination Certificate

active

07956745

ABSTRACT:
Query signals to one or more wireless tags are transmitted via radio communication, and a distance to a wireless tag to be retrieved is informed according to strength of a response signal from the wireless tag to be retrieved, which is included in the response signals transmitted from the one or more wireless tags via radio communication.

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