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Methods and apparatus for switching a transponder to an active state, and asset management systems employing sameA 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.
Document ID
20120014445
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Mickle, Marlin H.
Jones, Alex K.
Cain, James T.
Hawrylak, Peter J.
Marx, Frank
Hoare, Raymond R.
Date Acquired
August 26, 2013
Publication Date
September 4, 2012
Subject Category
Electronics And Electrical Engineering
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-8,258,957
Patent Application
US-Patent-Appl-SN-13/211,610

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