Combination magnetic tag
AssigneeBTG International Limited
InventorsColin S Sills, Timothy S Norris
Life of this patent
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Abstract
A combination magnetic tag (10) is described comprising an optical part (20) and a magnetic part (30), the optical part including a plurality of optical elements for conveying an optical code and the magnetic part including a plurality of magnetic elements for conveying a magnetic code, the optical and magnetic codes being mutually complementary for verifying authenticity of the tag (10). Incorporation of both optical and magnetic codes into the tag is of advantage in that they are capable of rendering the tag less susceptible to copying. The tag (10) is relevant to appropriate to anti-counterfeiting applications.
Claims27
A combination magnetic tag comprising an optical part and a magnetic part, the optical part including a plurality of optical elements for conveying an optical code and the magnetic part including a plurality of magnetic elements for conveying a magnetic code, wherein at least a part of the optical code, and at least part of the magnetic code are arranged to mutually correlate, the optical code including product and/or serial number information, said information being represented on the tag only in encoded form, the optical code being decodable using the magnetic code whereby comparing said at least part of the read magnetic code data and said at least part of the decoded optical code data determines whether or not the tag or tagged entity is authentic.
A combination magnetic tag comprising an optical part and a magnetic part, the optical part including a plurality of optical elements for conveying an optical code and the magnetic part including a plurality of magnetic elements for conveying a magnetic code, wherein at least a part of the optical code and at least part of the magnetic code are arranged to mutually correlate, the optical code including product and/or serial number information, said information being represented on the tag only in encoded form, at least part of the optical code being uniquely derived using at least part of the magnetic code whereby correlating the read magnetic code with the decoded optical code data is used to determine whether or not the tag or tagged entity is authentic.
A combination magnetic tag comprising an optical part and a magnetic part, the optical part including a plurality of optical elements for conveying an optical code and the magnetic part including a plurality of magnetic elements for conveying a magnetic code, wherein at least part of the magnetic code is encoded using a private key of a public-private key pair to generate at least part of the optical code, the at least part of the optical code and the magnetic code being mutually complementary for verifying authenticity of the tag or tagged entity.
A combination magnetic tag comprising an optical part and a magnetic part, the optical part including a plurality of optical elements for conveying an optical code and the magnetic part including a plurality of magnetic elements for conveying a magnetic code, wherein at least a part of the optical code and at least part of the magnetic code are arranged to mutually correlate, the optical code including product and/or serial number information, said information being represented on the tag only in encoded form, said at least part of the optical code being solely derived from, and being decodable using, the magnetic code whereby comparing said at least part of the read magnetic code data and said at least part of the decoded optical code data determines whether or not the tag or tagged entity is authentic.
A combination magnetic tag comprising an optical part and a magnetic part, the optical part including a plurality of optical elements for conveying an optical code and the magnetic part including a plurality of magnetic elements for conveying a magnetic code, wherein at least a part of the optical code and at least part of the magnetic code are arranged to mutually correlate, the optical code being decodable using the magnetic code whereby comparing said at least part of the read magnetic code data and said at least part of the decoded optical code data determines whether or not the tag or tagged entity is authentic.
Dependencies are inferred from the claim text.