Radio frequency identification transponder with electronic circu

Details Radio frequency identification transponder with electronic circu Radio frequency identification transponder with electronic circu

1996-07-29

1999-02-23

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

340572, 34082572, H04Q 100

Patent

active

058749020

ABSTRACT:
An RF tag has an enable/disable circuit connected to a critical part of an electronic object/circuit, e.g. a computer mother board. The critical part of the circuit is any circuit component and/or connection that can enable and/or disable the electric circuit operation. Signals are sent to the tag to change data in the tag memory which causes the enable/disable tag circuit to control the critical part to enable and disable the electric circuit. A system checks the status of the tag, e.g. the electronic circuit was paid for, before enabling the electronic circuit.

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Micron RFID Communications Protocol Micron Communications, Inc., Jul. 22, 1993, Title Page & Overleaf, Table of Contents, and pp. 1-71.
LS/S/TTL Logic Databook, National Semiconductor Corporation, 1989, Title Page, p. iii, and pp. 2-137.

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