On Tuesdays the USPTO issues new patents. Both of today's Spotlight Patents concern aspects of digital fingerprinting. Assigned to Dolby Labs, the first patent addresses techniques for improving audio/video fingerprint search accuracy. Assigned to Synergy Sports, the second patent addresses techniques for generating bookmark video fingerprints.
8,266,142, "Audio/Video fingerprint search accuracy using multiple search combining," assigned to Dolby Laboratories Licensing Corporation.
A method for use in identifying a segment of audio and/or video information comprises obtaining a query fingerprint at each of a plurality of spaced-apart time locations in said segment, searching fingerprints in a database for a potential match for each such query fingerprint, obtaining a confidence level of a potential match to a found fingerprint in the database for each such query fingerprint, and combining the results of searching for potential matches, wherein each potential match result is weighted by respective confidence level. A confidence level may be a function of at least one or both of (1) a measure of difference between a query fingerprint and a found fingerprint and (2) the relative timing relationship between the time location of a query fingerprint and the time location of a found fingerprint.
8,265,333, "Systems and methods for generating bookmark video fingerprints," assigned to Synergy Sports Technology, LLC.
Systems and methods for replacing original media bookmarks of at least a portion of a digital media file with replacement bookmarks is described. A media fingerprint engine detects the location of the original fingerprints associated with the portion of the digital media file and a region analysis algorithm characterizes regions of media file spanning the location of the original bookmarks by data class types. The replacement bookmarks are associated with the data class types and are overwritten or otherwise are substituted for the original bookmarks. The replacement bookmarks then are subjected to a fingerprint matching algorithm that incorporates media timeline and media related metadata.