Thursdays the USPTO publishes new patent applications. Today's Spotlight patent applications concern fingerprinting and watermarking, which continue to be hot topics. Assigned to Digimarc, the first application discloses techniques for using watermarking and fingerprinting as object identfiers with content distribution. Assigned to Sony, the second application discloses techniques for identifying material.
20080052783, "Using object identifiers with content distribution," assigned to Digimarc.
Object identifiers are used in a variety of content distribution arrangements, including--but not limited to--peer to peer networks. The object identifiers may be of different forms, including digital watermarks, fingerprint identifiers, etc. Through use of such identifiers, sometimes in conjunction with related databases, a number of functions and services can be readily implemented. These include governing content uploading/downloading in order to inhibit piracy, and to enable subscription models. A variety of other features and arrangements are also detailed.
20080072335, "Identifying material," assigned to Sony.
A method of identifying material comprises the step of inserting (882) an identifying code (886) into a signal as a watermark, and deriving (884) a signature from the material. The code and signature are stored in a database (894). The watermarked signal may be distributed and/or transmitted through a network (888). The signal may be processed in the network. A monitor (890) derives from the received signal, the signature and the code. They are compared (892) with the stored signature and code to check the provenance of the material.