| 摘要 |
<p>Delivering media contents In a media distribution system, where the content comprises a plurality of segments. Selectively protecting the plurality of segments by suitable encryption/encoding processes and associating content gateway to the protected segments. And distributing the content Including the protected and unprotected segments wherein the client device can decrypt the protected segments only upon accessing the gateway. The content gateways constitute advertisements and are selected based on profile of the user accessing the content and charging the advertisers for accessing the advertisements and thus rendering the contents free of charge to users.</p> |
