SYSTEM AND METHOD FOR AUTHENTICATING PRODUCTS
First Claim
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1. A method for authenticating a product, comprising:
- storing a first product signature and a first product identifier for the product;
measuring a physical attribute of the product to determine a second product signature for the product;
obtaining a second product identifier from an electronic device associated with the product;
retrieving the first product signature;
comparing the first product signature to the second product signature; and
determining responsive to the comparison, whether the first product signature matches the second product signature.
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Abstract
A method of authenticating a product is provided. The product has an associated electronic device, such as an RFID circuit. The method measures a physical attribute of the product, such as a laser speckle, and stores the measurement as a product signature, either in the RFID circuit or remotely. At the time the product is to be authenticated, a second measurement is taken, which is compared to the product signature. A product identifier from the electronic device may be used to facilitate the comparison. If the signatures match, the product is considered to be authentic.
71 Citations
21 Claims
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1. A method for authenticating a product, comprising:
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storing a first product signature and a first product identifier for the product;
measuring a physical attribute of the product to determine a second product signature for the product;
obtaining a second product identifier from an electronic device associated with the product;
retrieving the first product signature;
comparing the first product signature to the second product signature; and
determining responsive to the comparison, whether the first product signature matches the second product signature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An authentication device, comprising:
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An optical scanner for making a surface scan;
a wireless RF reader;
a processor operating the steps of;
using the optical scanner to generate a measured product signature for a product;
retrieving a stored product signature for the product;
comparing the measured product signature to the stored product signature; and
determining responsive to the comparison, whether the measured product signature matches the stored product signature; and
activating a local alert as to the authenticity of the product. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18)
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- 19. An RFID circuit holding a product signature for a product, the product signature representing surface characteristics of the product.
Specification