Tuesdays the USPTO issues new patents. Both of this week's Spotlight Patents concern aspects of digital watermarking. Assigned to Copilot Ventures, the first patent addresses techniques for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Assigned to Motorola Mobility, the second patent addresses techniques for conveying session information for use in forensic watermarking.
8,886,946, "Authentication method and system," assigned to Copilot Ventures Fund III LLC.
Abstract
The present invention provides a method and apparatus for the production and labeling of objects in a manner suitable for the prevention and detection of counterfeiting. Thus, the system incorporates a variety of features that make unauthorized reproduction difficult. In addition, the present invention provides a system and method for providing a dynamically reconfigurable watermark, and the use of the watermark to encode a stochastically variable property of the carrier medium for self-authentication purposes.8,886,945, "System and method for conveying session information for use in forensic watermarking," assigned to Motorola Mobility LLC.
Abstract
Methods for providing content session information using a content manager, streaming server, and one or more watermarking devices are disclosed. A content asset is also disclosed. The content asset may include content. In addition, the content asset may include a content data field having forensic watermark information, e.g. session or identifying information. In one aspect, the content asset is compressed and the compressed content asset has one or more pre-processed candidate watermark locations. In this aspect, the forensic watermark information may be extracted, e.g. by a watermarking device, from the content data field and included in the one or more pre-processed candidate watermark locations.
