New pending patent applications are published on Thursdays by the USPTO. Today's Spotlight Applications concern aspects of digital watermarking and digital fingerprinting. Assigned to Dolby, the first application discloses techniques for increasing the sensitivity of a watermark detector. Assigned to Terbium Labs, the second application discloses techniques for detecting copied computer code using fingerprints.
20160284039, "Method of increasing the sensitivity of a watermark detector," assigned to Dolby Labs
A method of detecting and extracting a watermark (digital watermarking) in a digital signal. The watermark is composed by the repetition of elementary components of a load to be transmitted. At least one repetition of an elementary component in the digital signal is detected. At least one quality attribute is assigned to each repetition of at least one elementary component. The repetitions of an elementary component are sorted according to a function of the quality attributes of these repetitions. Certain repetitions, dubbed individualities, of an elementary component are selected. The selected repetitions are fused.
20160283229, "Systems and methods for detecting copied computer code using fingerprints," assigned to Terbium Labs, Inc.
Systems and methods of detecting copying of computer code or portions of computer code involve generating unique fingerprints from compiled computer binaries. The unique fingerprints are simplified representations of functions in the compiled computer binaries and are compared with each other to identify similarities between functions in the respective compiled computer binaries. Copying can be detected when there are sufficient similarities between fingerprints of two functions.