Anti-collision tag apparatus and system

Communications: electrical – Selective – Interrogation response

Reexamination Certificate

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C340S010100, C340S010300, C340S010320, C340S010400, C340S010420, C340S010410, C340S010500, C340S870030, C340S870030, C340S870030

Reexamination Certificate

active

07106174

ABSTRACT:
This invention relates to radio frequency identification (RFID) apparatus comprising a reader/writer and transponders (tags) such that 2 or more transponders are capable of operating simultaneously in the same field so that information in the form of data bits may be received from or sent to the tags without corruption.

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patent: 6323566 (2001-11-01), Meier
patent: 6466771 (2002-10-01), Wood, Jr.
patent: 0 702 324 (1995-11-01), None
PCT/ISA/210, International Search Report, Application# PCT/GB99/01964, Aug. 10, 1999.
PCT/ISA/210, PCT International Search Report, Application# PCT/GB99/01964, Aug. 10, 1999.

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