Secure passive tagging scheme

Details Secure passive tagging scheme Secure passive tagging scheme

2005-12-09

2008-12-09

Labaze, Edwyn (Department: 2887)

Registers

Records

Particular code pattern

C235S487000, C235S375000

Reexamination Certificate

active

07461793

ABSTRACT:
A method of tagging a manufactured product with a passive tag includes processing a subset of a plurality of unique combinations of at least two axis ratios, where the subset is determinable by a plurality of parameters that define a portion of a coordinate space, to determine a first particular unique combination of the at least two axis ratios. A gas having the determined particular one unique combination of at least two axis ratios is incorporated into the manufactured product. The product to be tagged may be a first product, characterized by a first particular characteristic, and a second product is characterized by a second particular characteristic different from the first particular characteristic. The unique combination of at least two axis ratios is a first unique combination. The plurality of unique combinations of at least two axis ratios is processed to determine a second particular unique combination of the at least two axis ratios, and a gas having the determined second particular unique combination of at least two axis ratios is incorporated into the second product.

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