Digital watermarking and rights management broadly construed are the themes of today's Spotlight Applications. Assigned to AT&T the first application discloses techniques for inserting a digital watermark in a signal. Assigned to Digimarc, the second applications discloses techniques for advanced image signal processing technology including encoded signals and digital watermarking.
20210366074, "Digital watermarking," assigned to AT&T.
Abstract
In one example, a method for inserting a digital watermark in a signal includes obtaining the signal comprising a plurality of frames, inserting a first digital watermark in a first frame of the plurality of frames, inserting a second digital watermark in a second frame of the plurality of frames, wherein the second digital watermark differs from the first digital watermark in at least one way selected from a group of: a location within a respective frame, a number of bits, a pattern of bits, and a number of bits of a noise, and outputting a watermarked signal including the first digital watermark in the first frame and the second digital watermark in the second frame.
20210366073, "Signal encoding for difficult environments," assigned to Digimarc.
Abstract
This disclosure relates to advanced image signal processing technology including encoded signals and digital watermarking. We disclose methods, systems and apparatus for selecting which ink(s) should be selected to carry an encoded signal for a given machine-vision wavelength for a retail package or other printed design. We also disclose retail product packages and other printed objects, and methods to generate such, including a sparse mark in a first ink and an overprinted ink flood in a second ink. The first ink and the second ink are related through tack and spectral reflectance difference. Of course, other methods, packages, objects, systems and apparatus are described in this disclosure.
