Techniques for generating and using a fingerprint for an article
First Claim
1. A method of processing an article, the method comprising:
- determining a set of parameter values;
directly operating a scanner using the set of parameter values to obtain a set of data points for the article, the set of data points obtained when a light beam scatters from a surface of the article;
generating a fingerprint for the article based upon the set of data points; and
associating machine readable information with the article, wherein the set of parameter values are retrievable using the machine readable information.
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Accused Products
Abstract
Techniques for generating fingerprints for articles and using the fingerprints for various applications. Scan-related parameter values, including the area of an article scanned, may be specified and varied from one scan to another for collecting data points used for generating fingerprints for articles. A paper shredder is provided that is configured to, prior to shredding a paper sheet, scan the paper sheet and generate a fingerprint for the paper sheet. Fingerprints may also be generated for media keys that are used to access media data. The fingerprint generated for a media key may be used to authenticate the media key. Access to media data corresponding to the media key may be made contingent on successful authentication of the media key.
169 Citations
26 Claims
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1. A method of processing an article, the method comprising:
- determining a set of parameter values;
directly operating a scanner using the set of parameter values to obtain a set of data points for the article, the set of data points obtained when a light beam scatters from a surface of the article;
generating a fingerprint for the article based upon the set of data points; and
associating machine readable information with the article, wherein the set of parameter values are retrievable using the machine readable information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
- determining a set of parameter values;
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9. A method of processing an article, the method comprising:
- reading machine readable information associated with the article;
obtaining a set of parameter values using the machine readable information, wherein the set of parameter values comprises one or more parameter values used for generating a first fingerprint for the article;
directly operating a scanner using the set of parameter values to obtain a set of data points for the article, the set of data points obtained when a light beam scatters from a surface of the article; and
generating a second fingerprint for the article based upon the set of data points. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
- reading machine readable information associated with the article;
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17. A system comprising:
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a scanner configured to obtain a set of data points for an article by directly scanning the article using a set of parameters; and a processing system configured to; generate a fingerprint for the article based upon the set of data points; and cause machine readable information to be associated with the article, wherein the set of parameter values are retrievable using the machine readable information. - View Dependent Claims (18, 19, 20)
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21. A system comprising:
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a reader configured to read machine readable information associated with an article; a processing system configured to obtain a set of parameter values using the machine readable information, wherein the set of parameter values comprises one or more parameter values used for generating a first fingerprint for the article; and a scanner configured to directly obtain a set of data points for the article by using the set of parameter values, the set of data points obtained when a light beam scatters from a surface of the article; and wherein the processing system is configured to generate a second fingerprint for the article based upon the set of data points. - View Dependent Claims (22, 23, 24, 25, 26)
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Specification