Dual frequency radio tag for a radio frequency...

Details Dual frequency radio tag for a radio frequency... Dual frequency radio tag for a radio frequency...

2007-09-18

2007-09-18

Lee, Benjamin C. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S010100, C455S041100, C455S041200, C455S073000

Reexamination Certificate

active

11270286

ABSTRACT:
A dual frequency radio tag for a radio frequency identification system is provided that includes an antenna system and a first receiver coupled to the antenna system. The first receiver receives and processes request signals from a first unit type at a first frequency. A second receiver is coupled to the antenna system and receives and processes request signals from a second unit type at a disparate second frequency. A transmitter is coupled to the antenna system and transmits response signals from the radio tag at the second frequency.

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