D Wong, C Lee - US Patent 9,117,270, 2015 - Google Patents
Methods and devices are provided for reducing perceptible artifacts in a host content when the host contend is embedded with watermarks. In one method, a first segment of a host …
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 …
Methods and devices are provided to thwart analysis of a watermarking system by preventing analysis of watermarks in a host content. Upon receiving a content at a …
R Petrovic - US Patent 7,024,018, 2006 - Google Patents
Methods and apparatus are provided for embedding information in a host signal based on the positioning of watermarks within the host signal. An embedder provides (ie embeds) a …
R Petrovic, J Zhao, JM Winograd - US Patent App. 13/324,336, 2013 - Google Patents
Methods, devices and computer program products facilitate embedding and extraction of watermarks into and from a host content. Embedded watermarks include an automatically …
Methods and devices are provided to thwart analysis of a watermarking system by preventing analysis of watermarks in a host content. Upon receiving a content at a …
R Petrovic, J Zhao, JM Winograd - US Patent 9,323,902, 2016 - Google Patents
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 …