专利名称：Watermarking data streams发明人：Anderson, Bruce James Jr.申请号：EP00306187.6申请日：20000720公开号：EP1071289A2公开日：20010124
专利附图：
摘要：Watermarks are added to data streams (e.g., video streams) to enable improveddetection and thereby prevention of the theft of such data streams. In one embodiment,a watermark containing receiver-dependent information is added to a video stream at anupstream node, where the video stream containing the watermark is transmitted to a
downstream node corresponding to the receiver-dependent infonnation. In this way, aparticular copy of a video stream can be analyzed to determine who was the intendedend user of the video stream. These features can be implemented to aid in the detectionof content theft and, through related deterrent effects, aid in the prevention of suchtheft in the first place.
申请人：Sarnoff Corporation
地址：201 Washington Road, CN 5300 Princeton, NJ 08543-5300 US
国籍：US
代理机构：Pratt, Richard Wilson
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