Tamper indicating radio frequency identification label with tracking capability
First Claim
1. A tamper indicating label comprising:
- an RFID layer providing an RFID function;
an adhesive layer supporting the RFID layer;
a destructible electrically conducting path between the RFID layer and the adhesive layer, whereby the destructible conducting path is disrupted when the label is tampered, thereby modifying the RFID function of the RFID layer.
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Accused Products
Abstract
A tamper indicating label (100) is provided. The label may include RFID components (401, 402) and a tamper track (102) coupled to the RFID components. The tamper track should be constructed from a destructible conducting path. Additionally, the tamper track can be formed such that it is damaged when the label is tampered. In one embodiment, adhesion characteristics (103) of the tamper track are adapted to break apart the tamper track when the label is tampered, for example, by removal from an object. The RFID components may retain their RF capability and detect when the tamper track has been damaged to indicate that the label has been tampered. Alternatively, the RFID capability of the RFID components may be disabled when the tamper track is damaged, indicating tampering.
248 Citations
30 Claims
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1. A tamper indicating label comprising:
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an RFID layer providing an RFID function;
an adhesive layer supporting the RFID layer;
a destructible electrically conducting path between the RFID layer and the adhesive layer, whereby the destructible conducting path is disrupted when the label is tampered, thereby modifying the RFID function of the RFID layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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12. A tamper indicating label comprising:
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a substrate having first and second portions, the second portion being adapted to be looped back and connected to the first portion;
RFID components arranged on the substrate;
a tamper track arranged on the same side of the substrate as the RFID components, the tamper track being coupled to the RFID components and extending at least partially into the second portion of the substrate, the tamper track being exposed in a part of the second portion of the substrate;
an adhesive layer arranged over the exposed part of the tamper track, the tamper track being adapted to be modified when the label is tampered due to the relative adhesion strength of the tamper track to the adhesive layer, thereby modifying the RFID function of the RFID components. - View Dependent Claims (11, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A tamper indicating label comprising:
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a substrate having first and second surfaces;
RFID components arranged on the first surface of the substrate;
at least one pair of through-connects extending through the substrate;
first tamper tracks formed on the first surface of the substrate and second tamper tracks formed on the second surface of the substrate, the second tamper tracks being connected between the through-connects to the first tamper tracks, whereby the first and second tamper tracks are electrically connected to each other; and
an adhesive layer arranged over the tamper tracks on the second surface of the substrate, whereby the second tamper tracks are interrupted or substantially disrupted when the label is at least partially removed from a surface to which it has been applied by means of the adhesive layer, thereby modifying RFID characteristics of the RFID components. - View Dependent Claims (22, 23, 24, 25, 26, 27)
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28. A method for reading information from an RFID label, the RFID label incorporating RFID apparatus that includes an integrated circuit chip, the method comprising:
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storing a property of the RFID apparatus as first data values in a first memory of the integrated circuit chip;
reading the first data values from the first memory with an RFID read/write apparatus;
determining from the first data values if the RFID label has been tampered; and
writing second data values to a second memory of the integrated circuit with the RFID read/write apparatus if the RFID label has been tampered. - View Dependent Claims (29, 30)
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Specification