TAMPER RESISTANT RFID TAG CIRCUIT APPARATUS AND METHOD
First Claim
1. A tamper resistant tag circuit apparatus, said apparatus comprising:
- an oscillator circuit configured on a substrate of a tag to permit said tag to be keyed to an object;
at least one capacitor that is operatively connected with said substrate of said tag to determine an oscillator frequency pulse when placed on said object; and
a comparator that compares said oscillator frequency pulse with a predetermined pulse count in order to accept said object when said oscillator frequency pulse matches said predetermined pulse count.
6 Assignments
0 Petitions
Accused Products
Abstract
A tamper pool RFID tag apparatus, system and method for keying the RFID tag in association with an object. An oscillator circuit configured on an RFID tag substrate enables the RFID tag to be keyed with respect to the object. One or more capacitors that are operatively connected in association with the RFID tag substrate via a substrate vias determine an oscillator frequency pulse when placed on the object. A comparator compares the oscillator frequency pulse with a predetermined pulse count stored in a latch/storing unit. The RFID tag circuit can accept the object in, for example, a vending machine, if the frequency pulse matches the predetermined pulse count in order to effectively handle object returns in a wide range of commercial applications.
9 Citations
20 Claims
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1. A tamper resistant tag circuit apparatus, said apparatus comprising:
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an oscillator circuit configured on a substrate of a tag to permit said tag to be keyed to an object; at least one capacitor that is operatively connected with said substrate of said tag to determine an oscillator frequency pulse when placed on said object; and a comparator that compares said oscillator frequency pulse with a predetermined pulse count in order to accept said object when said oscillator frequency pulse matches said predetermined pulse count. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 16, 20)
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10. A tamper resistant tag circuit system, said system comprising:
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a vending machine; an oscillator circuit configured on a substrate of a tag to permit said tag to be keyed to an object; at least one capacitor that is operatively connected with said substrate of said tag to determine an oscillator frequency pulse when placed on said object; and a comparator that compares said oscillator frequency pulse with a predetermined pulse count in order to accept said object in said vending machine when said oscillator frequency pulse matches said predetermined pulse count.
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11. A method for providing tamper resistant tag circuit, said method comprising:
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configuring an oscillator circuit on a substrate of a tag to permit said tag to be keyed to an object; operatively and electrically connecting at least one capacitor to said substrate of said tag to determine an oscillator frequency pulse when placed on said object; and comparing, utilizing a comparator, said oscillator frequency pulse with a predetermined pulse count in order to accept said object when said oscillator frequency pulse matches said predetermined pulse count. - View Dependent Claims (12, 13, 14, 15, 17, 18, 19)
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Specification