ASSOCIATING FIRST AND SECOND WATERMARKS WITH AUDIO OR VIDEO CONTENT

摘要

The present invention relates generally to processing audio or video content. One claim recites a system comprising: a portable device comprising storage and an electronic logic processor, the electronic logic processor configured for analyzing first content stored in said storage to detect a first class of watermarking hidden therein, the first class of watermarking comprising a link between the first content and a user, the first content further comprising a second class of watermarking, the second class of watermarking providing an indication that the first content is protected, in which the second class of watermarking is more difficult to remove from content relative to the first class of watermarking; and a software module for interacting with content files, said software module including instructions to cause an electronic logic processor to control transfer of the first content file to said portable device based on detection and interpretation of the second class of watermarking. Other claims and combinations are provided as well.

主权项

1. A method comprising:
storing content representing audio or video in storage; using an electronic logic processor: i) embedding a first watermark in the content, the first watermark linking the content to a user; and ii) embedding a second watermark in the content, the second watermark providing an indication that the content is protected, in which the second watermark is more difficult to remove from the content relative to the first watermark; and distributing the content to the user after said acts of embedding the first watermark in the content and embedding the second watermark in the content.