New pending patent applications are published on Thursdays by the USPTO. Both of today's Spotlight Applications concern aspects of digital watermarking. Assigned to Link-Busters IP (NL), the first application discloses techniques for detecting violation of intellectual property rights of a digital file. Assigned to TLS Corp., the second application discloses techniques for extracting and modifying a watermark signal from an output signal of a watermarking encoder.
20160203574, "Method and system for detecting violation of intellectual property rights of a digital file," apparently assigned to Link-Busters IP B.V (NL).
Abstract
A computer-based method and system for detecting violation of intellectual property rights of a digital file, comprising, in a distribution channel, digitally sending or streaming the file from a sending party to a receiving party, adding a watermark to the digital file at the sending party prior to sending or streaming the file, wherein the watermark comprises an identifier of the sending and receiving party(s), as well as a unique file ID. In one embodiment, the party is informed about user and/or customer behavior, and can take precautions.20160196630, "Extracting and modifying a watermark signal from an output signal of a watermarking encoder," assigned to TLS Corp.
Abstract
A device for extracting a watermark signal from an output signal of a watermarking encoder includes an input configured to receive the input signal and the output signal. The device further includes an adjustment signal generator configured to generate a gain adjustment signal and a delay adjustment signal based on the input signal and the output signal, a gain and delay adjustor configured to adjust gain and delay of the output signal or the input signal based on the gain adjustment signal and the delay adjustment signal, respectively, to generate an adjusted output signal or an adjusted input signal, respectively, and an output configured to transmit a difference between the input signal and the adjusted output signal or a difference between the adjusted input signal and the output signal as the watermark signal.
