Contact-less tag with signature, and applications thereof
First Claim
1. An arrangement of goods, comprising:
- a plurality of units of an article, the units equipped with respective contactlessly readable tags;
each of said tags comprising a respective memory configured to store a respective signature;
the signatures stored in the memories of said tags appearing scrambled relative to one another when read by a reader;
wherein decrypting the signatures using a common key reveals respective decrypted signatures comprising a common identifier, wherein the common identifier identifies said article.
1 Assignment
0 Petitions
Accused Products
Abstract
An arrangement of goods, comprising: a plurality of units of an article, the units equipped with respective contactlessly readable tags; each of said tags comprising a respective memory configured to store a respective signature; the signatures stored in the memories of said tags appearing scrambled relative to one another when read by a reader. Also, a method, comprising: contactlessly reading a first signature from a first tag affixed to a first unit of an article; contactlessly reading a second signature from a second tag affixed to a second unit of the same article, the second signature appearing scrambled relative to the first signature; decrypting the first signature with a key to reveal (I) an identifier associated with the article and (II) a first scrambling code; and decrypting the second signature with the same key to reveal the same identifier and a second scrambling code different from the first scrambling code.
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Citations
24 Claims
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1. An arrangement of goods, comprising:
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a plurality of units of an article, the units equipped with respective contactlessly readable tags; each of said tags comprising a respective memory configured to store a respective signature; the signatures stored in the memories of said tags appearing scrambled relative to one another when read by a reader; wherein decrypting the signatures using a common key reveals respective decrypted signatures comprising a common identifier, wherein the common identifier identifies said article. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 23, 24)
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16. A method, comprising:
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contactlessly reading a first signature from a first tag affixed to a first unit of an article; contactlessly reading a second signature from a second tag affixed to a second unit of the same article, the second signature appearing scrambled relative to the first signature; decrypting the first signature with a key to reveal (I) an identifier identifying the article and (II) a first scrambling code; and decrypting the second signature with the same key to reveal the same identifier and a second scrambling code different from the first scrambling code. - View Dependent Claims (17, 18, 19, 20, 21)
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22. A method, comprising:
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generating a plurality of signatures, each of the signatures generated by encrypting a common identifier and a respective scrambling code using a common key; and loading the signatures onto respective ones of a plurality of contactlessly readable tags for identification of respective units of a same article identified by the common identifier.
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Specification