Method for marking and transmitting a content and method for detecting an identifyier of said content

摘要

The present invention concerns a method for marking a content sent by packets by a content provider to at least one user unit having a user unit identifier. At least some of the packets forming said content are available from said content provider in at least two different resolutions. The method is characterized in that at least some of the packets available in at least two different resolutions are sent to the user unit according to a series of resolutions depending on the user unit identifier.;The present invention further concern a method for transmitting a content marked according to the marking method of the invention, as well as a method for detecting an identifier from a content marked according to the marking method of the invention.