Method and system for marking digital content

摘要

In one embodiment, a request to deliver a piece of digital content to a recipient is received. In response to the request, a datum is embedded in an equivalent piece of digital content that identifies the recipient. The equivalent piece of digital content is then delivered to the recipient.

主权项

1. A method for marking digital content comprising:
receiving a request from a user to deliver a piece of digital content to said user, wherein said piece of digital content comprises a plurality of frames; embedding at least one datum in said piece of digital content to generate an equivalent piece of digital content, wherein said datum is embedded in less than all of said plurality of frames, wherein said datum is embedded in one and only one intra-coded frame (I frame) of the digital content provided the one and only one I frame is immediately followed in the content by another I frame, and/or wherein said datum is embedded in every Nth frame of the content, wherein N is an integer greater than one, for delivery of said equivalent piece of digital content to said user.