The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 08, 2021
Filed:
Aug. 01, 2019
Irdeto B.v., Hoofddorp, NL;
Lau Zuydervelt, Hoofddorp, NL;
Vladimir {hacek over (Z)}ivković, Hoofddorp, NL;
Maksym Koshel, Hoofddorp, NL;
Lucas Catranis, Hoofddorp, NL;
Yu Duan, Hoofddorp, NL;
Chunqiu Lu, Hoofddorp, NL;
Lin Yuan, Hoofddorp, NL;
Kimon Tsitsikas, Hoofddorp, NL;
Vyacheslav Shoshin, Hoofddorp, NL;
IRDETO B.V., Hoofddorp, NL;
Abstract
Watermarking of a content stream is accomplished in a session-based manner to provide watermarking based on a uniquely generated manifest that will result in a stream that allows for unique identification of information. The manifest specifies a sequence of watermarks for successive segments of a content stream designated for a specific receiver. The system and method leverages existing content distribution infrastructure and has many of the benefits of conventional head-end watermarking, allows unique identification of small segments of the data stream and reduces content distribution network storage requirements. Groups of nodes can be provided with unique watermark patterns and detection and watermark pattern reconfiguration can be accomplished in an iterative manner to find a specific node without the need to create unique watermark patterns for each node.