New patents are published by the USPTO on Tuesdays. Both of today's Spotlight Patents concern aspects of digital fingerprinting. Assigned to Boeing, the first patent addresses techniques for generating a fingerprint for verification of a reference object and is one of the few applications of digital fingerprinting I've seen in manufacturing. Assigned to Amazon, the second patent addresses techniques for identifying protected media files.
9,659,362, "Methods and systems for generating a fingerprint for verification of a reference object," assigned to Boeing.
Disclosed herein are methods and systems for generating a fingerprint for verification of a reference object, such as a layer or ply during a composite laminate layup procedure. An exemplary method includes the steps of generating at least one reference image of a reference object; removing lighting effects from the at least one reference image to create at least one processed image; generating a reference fingerprint for the reference object based on the at least one processed image; generating at least one candidate image of a candidate object; generating a candidate fingerprint for the candidate object based on the at least one candidate image; and comparing the candidate fingerprint and the reference fingerprint to determine a correlation. An alert is generated based on the comparison. The alert is indicative that the correlation between the candidate fingerprint and the reference fingerprint exists.
9,660,988, "Identifying protected media files," assigned to Amazon.
A user can have media files associated with a user account in a shared resource environment, enabling the user to access those files from multiple devices and locations. Instead of uploading each file, a process can scan the files to determine corresponding copies already stored to the shared resource environment, which can be associated with the user account without uploading another copy. In cases where encryption or other protection prevents the content of a file from being verified, a fingerprint of unencrypted records of the file can be generated and compared against an index of fingerprints for previously encountered files. If the fingerprint matches information stored for a media file, and the fingerprint meets at least one validity criterion, a copy of the media file can be associated with the user account even though the user's copy cannot be read, or potentially even played, by a component of the environment.