Analog and digital indicia authentication
First Claim
1. An authentication-enabled indicium comprising:
- a digital recording medium including;
a first data field that encodes information about a product to which the indicium is affixed; and
a second data field that encodes at least one authenticating signature that is verified by accessing information external to the digital recording medium.
1 Assignment
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Accused Products
Abstract
An authentication-enabled indicium contains authentication information in a digital recording medium. The information may be a digital signature that verifies the manufacturer'"'"'s data and/or an analog signature. The analog signature is generated by placing a randomized pattern on a product package or label and encoding information about the randomized pattern in the digital recording medium for verification. The randomized pattern may be made up of color-shifting features imbedded in the label that are visible when illuminated with UV or infrared light. Characteristics of the reflected light when the features are illuminated is used to generate an analog signature that is encoded in the recording medium. During processing the features are illuminated and a new analog signature is determined for comparison with the signature recorded in the digital recording medium.
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Citations
39 Claims
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1. An authentication-enabled indicium comprising:
a digital recording medium including;
a first data field that encodes information about a product to which the indicium is affixed; and
a second data field that encodes at least one authenticating signature that is verified by accessing information external to the digital recording medium. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A method that authenticates an indicium that includes a digital recording medium comprising:
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decoding a first data field having information about a product to which the label is affixed;
decoding a second data field having at least one authentication signature that is verified by accessing information external to the indicium;
verifying the authenticating signature using information not encoded in the digital recording medium. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. An authentication indicium reader comprising:
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a visible light source, a camera containing a lens system and a two-dimensional sensor array, a memory, and a processor which performs authentication by capturing the image of a two-dimensional bar code and authenticating it with information stored outside of the bar code. - View Dependent Claims (34, 35, 36, 37, 38)
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39. An authentication scanner comprising:
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a visible light source, an invisible source of excitation, a camera containing a lens system and a two-dimensional sensor array, a digital data readout device, a memory, and a processor which performs authentication by reading out information of a digital recording medium, and capturing images, with both the visible and invisible source, of analog identification features, authenticating the digital medium with the analog identification features.
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Specification