Changing Indicia in an electronic tag when tampered with

Details Changing Indicia in an electronic tag when tampered with Changing Indicia in an electronic tag when tampered with

1997-03-11

1999-12-14

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

34082534, 34082578, 340664, H04Q 100

Patent

active

060023430

ABSTRACT:
An electronic seal including an electronic tag, an electrically resistive element in electrical communication with and attached to the tag, the resistive element being bondable to an object so as to define an electrical resistance, wherein a change in bonding of the element to the object causes a change in the electrical resistance, the change in electrical resistance being communicated to the tag.

REFERENCES:
patent: 4218674 (1980-08-01), Brosow
patent: 4827395 (1989-05-01), Anders
patent: 4952913 (1990-08-01), Pauley et al.
patent: 5072213 (1991-12-01), Close
patent: 5097253 (1992-03-01), Eschbach
patent: 5099228 (1992-03-01), Israel et al.
patent: 5266925 (1993-11-01), Uercellotti et al.
patent: 5656996 (1997-08-01), Houser

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