METHOD AND SYSTEM FOR CONTENT DISTRIBUTION

• US 20090177793A1
• Filed: 04/03/2007
• Published: 07/09/2009
• Est. Priority Date: 04/13/2006
• Status: Active Grant

• Current Assignee: Traacking SA
• Original Assignee: Flowing Content S.A.
• Inventors: Legault, Romain, Josa, Charles
• Granted Patent: US 8,914,530 B2
• Time in Patent Office: Days
• US Class Current: 709/231
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: H04L 63/10 for controlling access to devices or network resources

Abstract

A centralized distribution server includes converter means for embedding content data into a digital delivery stream and transmitting means for transmitting the digital delivery stream to at least one of the subscriber terminals via a forward network channel. The at least one subscriber terminal includes receiving means for receiving the digital delivery stream from the centralized server and interface means for enabling access to the digital delivery stream and/or the content data embedded therein by a subscriber. According to the invention, the at least one subscriber terminal includes first means for generating a first acknowledgement (type 1) upon receipt of the digital delivery stream by the receiving means and second means for generating a second acknowledgement (type 2) upon access of the digital delivery stream and/or the content data embedded therein by the user via the interface means, the first and second acknowledgements to be transmitted to the centralized distribution server via a return network channel and the centralized distribution server includes a feedback management module for receiving the first and second acknowledgements transmitted from the at least one subscriber terminal to the centralized distribution server. Each acknowledgment (type 1 or type 2) sent by each subscriber terminal and received by the centralized distribution server generates a message that proves that the status of the digital delivery stream and/or the content data embedded therein on the subscriber terminal is known by the centralized distribution server and thus confirmed.

Claims

1. A network-based content distribution system, comprising a centralized distribution server and a number of subscriber terminals,

wherein said centralized distribution server comprises a converter module for embedding content data into a digital delivery stream and transmitter module for transmitting said digital delivery stream to at least one of said subscriber terminals via a forward network channel, and

wherein said at least one subscriber terminal comprises a receiver module for receiving said digital delivery stream from said centralized server and an interface module for enabling access to said digital delivery stream and/or the content data embedded therein by a subscriber,

wherein

said at least one subscriber terminal further comprises a first generator module for generating a first acknowledgement upon receipt of said digital delivery stream by said receiver module and a second generator module for generating a second acknowledgement upon access of the digital delivery stream and/or the content data embedded therein by the user via the interface module, said first and second acknowledgements to be transmitted to the centralized distribution server via a return network channel, and

said centralized distribution server comprises a feedback management module for receiving said first and second acknowledgements transmitted from said at least one subscriber terminal to the centralized distribution server.

2. The network-based content distribution system according to claim 1, wherein said feedback management module comprises a module for generating a first message and a second message respectively upon receipt of said first and second acknowledgements transmitted from said at least one subscriber terminal to the centralized distribution server, said first message and a second messages proving that the status of the digital delivery stream and/or the content data embedded therein on the at least one subscriber terminal is known by the centralized distribution server and that said status is thus confirmed.

3. The network-based content distribution system according to claim 1, wherein said converter module for embedding content data into a digital delivery stream comprises at least one streamer module for converting content data into a data stream.

4. The network-based content distribution system according to claim 1,

wherein said converter module for embedding content data into a digital delivery stream comprises a multiplexer module, said multiplexer module for converting at least two individual data streams into a mixed stream, said mixed stream containing data packets of said at least two individual data streams, and

wherein said receiver module of said at least one subscriber terminal comprises a de-multiplexer module for de-multiplexing said mixed stream into said individual data streams.

5. The network-based content distribution system according to claim 1, wherein said centralized distribution server comprises a scheduler module for managing content distribution planning and scheduling.

6. The network-based content distribution system according to claim 1, wherein said feedback management module comprises a module for interacting with said at least one streamer module, to cause said streamer module to resend missing data upon receipt of a corresponding acknowledgement by said at least one subscriber terminal.

7. The network-based content distribution system according to claim 3,

wherein said centralized distribution server comprises an encryption module for encrypting said data stream and/or said mixed stream into an encrypted stream, and wherein said at least one subscriber terminal comprises a decryption module for decrypting said encrypted stream into an unencrypted data stream and/or an unencrypted mixed stream.

8. The network-based content distribution system according to claim 7, wherein said second generator module for generating a second acknowledgement is responsive to said decryption module and generates said second acknowledgement upon decryption of the encrypted stream into an unencrypted data stream and/or an unencrypted mixed stream.

9. The network-based content distribution system according to claim 1, wherein said centralized distribution server comprises a forward error correction module for providing said data stream and/or said mixed stream with a redundant coding scheme, and

wherein said receiver module of said at least one subscriber terminal comprises a corresponding error correction module for reconstituting data lost during transmission based on said redundant coding scheme.

10. The network-based content distribution system according to claim 1, wherein said centralized distribution server comprises a monitor module for

monitoring information from at least one module chosen from the group consisting of said at least one streamer module, said multiplexer module, said scheduler module, said feedback management module, said encryption module, said error correction module;

and for

controlling the operation of said at least one module.