Thursdays the PTO publishes new pending patent applications. Today's Spotlight Applications concern aspects of digital watermarking and digital fingerprinting. Assigned to Digimarc, the first application discloses techniques for orchestrated encoding and decoding. Assigned to Nagravision, the second application discloses techniques for enhancing redistributed audio/video content.
20140114666, "Orchestrated encoding and decoding," assigned to Digimarc.
Orchestrated encoding schemes facilitate encoding and decoding of data in content signals at several points in the distribution path of content items. Orchestrated encoding adheres to a set of encoding rules that enables multiple watermarks and corresponding applications to co-exist, avoids collisions among watermarks, and simplifies metadata and routing database infrastructure.
20140115626, "Method and system for enhancing redistributed audio/video content," assigned to Nagravision S.A. (FR).
A method and a system for recognizing, by a broadcasting platform, content sequences of an input linear content stream by retrieving content information determined by small fingerprints of portions of the linear content and comparing the small fingerprint with reference fingerprints stored in a database. The output stream transmitted to the user units is modified by the addition of a synchronization stream including at least identifiers of the content sequences and associated temporal information determined on the basis of the reference fingerprints. The content information is exploited by the broadcasting platform or the users units for replacing a sequence by anther one, removing predefined sequences, skipping or forcing viewing content sequences, The initial linear content stream is thus enriched with accurate content information allowing the viewer to navigate and select the content to play either in live or replay mode. A back in time feature may also be introduced allowing navigating back and forward inside a content currently played.