Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2011-01-25
2011-01-25
Nguyen, Tai T (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S572700, C340S572800, C340S539220, C340S870010, C340S010500, C235S385000, C235S492000, C343S850000, C343S860000, C343S795000
Reexamination Certificate
active
07876225
ABSTRACT:
A transponder that may be used as an RFID tag includes a passive circuit to eliminate the need for an “always on” active RF receiving element to anticipate a wake-up signal for the balance of the transponder electronics. This solution allows the entire active transponder to have all circuit elements in a sleep (standby) state, thus drastically extending battery life or other charge storage device life. Also, a wake-up solution that reduces total energy consumption of an active transponder system by allowing all non-addressed transponders to remain in a sleep (standby) state, thereby reducing total system or collection energy. Also, the transponder and wake-up solution are employed in an asset tracking system.
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Cain James T.
Hawrylak Peter J.
Hoare Raymond R.
Jones Alex K.
Marx Frank
Eckert Seamans Cherin & Mellott , LLC
Levy, Esquire Philip E.
Nguyen Tai T
University of Pittsburgh - Of The Commonwealth System of Higher
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