Content access management using extracted watermark information

JM Winograd, R Petrovic, J Zhao - US Patent 8,838,978, 2014 - Google Patents
4,225,967 4,230,990 4,281.217 4,295,128 4.425, 578 4454, 610 4,464,656 4497, 060
4,512,013 4,547,804 4,564,862 4,593.904 4,639,779 4,669,089 4,677.466 4,686,707 …

Content access management using extracted watermark information

JM Winograd, R Petrovic, J Zhao - US Patent 8,838,978, 2014 - freepatentsonline.com
Methods, devices, and computer program products facilitate the application of a content use
policy based on watermarks that are embedded in a content. Watermark extraction and …

Context access management using watermark extraction information

JM Winograd, R Petrovic, J Zhao - US Patent App. 13/080,598, 2012 - Google Patents
Methods, devices, and computer program products facilitate the application of a content use
policy based on watermarks that are embedded in a content. Watermark extraction and …

CONTEXT ACCESS MANAGEMENT USING WATERMARK EXTRACTION INFORMATION

JM Winograd, R Petrovic… - US Patent App. 13 …, 2012 - freepatentsonline.com
Methods, devices, and computer program products facilitate the application of a content use
policy based on watermarks that are embedded in a content. Watermark extraction and …