Methods, devices, and computer program products enable the embedding of forensic marks
in a host content that is in compressed domain. These and other features are achieved by …

Methods, devices, and computer program products enable the embedding of forensic marks
in a host content that is in compressed domain. These and other features are achieved by …

Methods, systems, and apparatus are disclosed Which enable? exible insertion of forensic
Watermarks into a digital content signal using a common customization function. The …

Methods, devices and computer program products facilitate conditional access to a content
embedded with watermarks. For Such a content, when copy control rules associated with an …

Methods, systems, and apparatus are disclosed which enable flexible insertion of forensic
watermarks into a digital content signal using a common customization function. The …

BACKGROUND 0003) A work of media is often distributed to consumers via fixed computer-
readable media, Such as a compact disc (CD-ROM), digital versatile disc (DVD), soft …

4,639,779 4,669,089 4,677.466 4,686,707 4,703,476 4,706,282 4,723,302 4,729,398
4,739,398 4,750,173 4,755,871 4,755,884 4,764,608 4,764,808 4,789,863 4,805,020 …

US PATENT DOCUMENTS 3,406,344 A 10/1968 Hopper 3,842,196 A 10/1974 Loughlin
3,885,217 A 5, 1975 Cintron 3,894,190 A 7, 1975 Gassmann 3,919,479 A 11/1975 Moon et …

Methods, systems, and apparatus are disclosed which enable flexible insertion of forensic
watermarks into a digital content signal using a common customization function. The …

Methods and devices are provided to embed imperceptible watermarks into a host content
and to subsequently extract embedded watermarks in a manner so as to achieve desired …