Datacast distribution system

• US 20030088778A1
• Filed: 10/10/2002
• Published: 05/08/2003
• Est. Priority Date: 10/10/2001
• Status: Active Grant

• Current Assignee: III Holdings 3, LLC
• Original Assignee: Nokia Corporation
• Inventors: Prokki, Kai-Uwe, Lindqvist, Markus, Soinio, Markku, Muller, Dominique
• Granted Patent: US 7,437,549 B2
• Time in Patent Office: Days
• US Class Current: 713/182
• CPC Class Codes: G06F 16/9535 Search customisation based on user profiles and personalisation
• CPC Class Codes: H04H 20/42 Arrangements for resource management
• CPC Class Codes: H04H 60/06 Arrangements for scheduling broadcast services or broadcast-related services
• CPC Class Codes: H04H 60/15 on receiving information
• CPC Class Codes: H04H 60/33 Arrangements for monitoring the users' behaviour or opinions
• CPC Class Codes: H04H 60/73 using meta-information
• CPC Class Codes: H04L 12/1859 adapted to provide push services, e.g. data channels
• CPC Class Codes: H04L 2463/101 applying security measures for digital rights management data processing systems or methods, specially adapted for commerce, e.g. marketing, shopping, billing, auctions or e-commerce G06Q30/00
• CPC Class Codes: H04L 67/04 specially adapted for terminals or networks with limited capabilities; specially adapted for terminal portability
• CPC Class Codes: H04L 67/306 User profiles
• CPC Class Codes: H04L 67/63 Routing a service request depending on the request content or context
• CPC Class Codes: H04N 21/254 Management at additional data server, e.g. shopping server, rights management server arrangements for maintenance or administration in data networks H04L41/00; network services using third party service providers H04L67/53
• CPC Class Codes: H04N 21/6125 involving transmission via Internet transmission by internet of broadcast information H04H60/82
• CPC Class Codes: H04N 7/16 Analogue secrecy systems; Analogue subscription systems
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests
• CPC Class Codes: H04W 12/0431 Key distribution or pre-distribution; Key agreement
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365

Abstract

According to the present invention there is provided a datacast distribution system which allows for the distribution of movies, music, games, application software, and the like using a new or existing terrestrial digital video broadcasting (DVB-T) network or the like.

Claims

1. A method for performing filtering of incoming content to a data terminal, comprising:

associating with each of a plurality of content files a metadata file, each said metadata file including a unique identifier;

receiving a specification of content of interest to a user, said specification being in terms of metadata keywords;

searching said metadata files for said keywords;

noting the unique identifiers associated with metadata files including one or more of said keywords;

monitoring incoming packets for the noted unique identifiers, each of said packets conveying a portion of one of said content files; and

bringing to said user'"'"'s attention only content files conveyed by packets that contain one of the noted unique identifiers, wherein said metadata is electronic service guide metadata.

2. A method for bandwidth allocation, comprising:

defining a plurality of network areas;

defining a plurality of day-type profiles;

mapping each of a plurality of calendar dates one of said day-type profiles;

partitioning each of the broadcast channels into plurality of blocks; and

associating each of said blocks with one of a plurality of defined topics.

3. A method managing reception rights, comprising:

employing a terminal which contains a terminal key;

distributing to a user a user key;

distributing to said user an encrypted access key;

transmitting to said user packets with encrypted payloads; and

performing depacketization of said packets, said depacketization comprising decrypting said access key using said user key and said terminal key, said depacketization further comprising using the decrypted access key to decrypt said payloads,

wherein said decrypted access key is only available within said depacketization step.

4. A method of claim 3, wherein said encrypted access key is capable of being decrypted through use of said terminal key and said user key, and wherein said payloads are capable of being decrypted through use of a decrypted form of said encrypted access key.

5. A method as claimed in claim 3, further comprising destroying the decrypted access key immediately after application.

6. The method of claim 3 wherein said access key has an expiration date.

7. A method connecting a content provider to a broadcast system, comprising:

allowing the content provider to view available bandwidth in a network of the broadcast system; and

allowing the content provider to, by defining a certain amount of bandwidth between a stated start time and a stated end time, allocate bandwidth for a broadcast program in one or more network areas.

8. The method of claim 7, further comprising allowing said content provider to view account information.

9. The method of claim 7, further comprising allowing said content provider to modify account information.

10. The method of claim 7, further comprising allowing said content provider to modify service attributes.

11. The method of claim 7, further comprising allowing said content provider to add a service.

12. The method of claim 7, further comprising allowing said content provider to cancel a service.

13. The method of claim 7, further comprising allowing said content provider to allocate system resources.

14. The method of claim 7, further comprising allowing said content provider to change associations between content and services.

15. The method of claim 7, further comprising allowing said content provider to add information corresponding to content associated with a service.

16. The method of claim 7, further comprising allowing said content provider to modify information corresponding to content associated with a service.

17. The method of claim 7, further comprising allowing said content provider to remove information corresponding to content associated with a service.

18. The method of claim 7, wherein said available bandwidth corresponds to a certain area of said network.

19. The method of claim 7, wherein said available bandwidth corresponds all of said network.

20. The method of claim 7, further comprising allowing said content provider to view network topology.

21. The method of claim 20, wherein said network topology corresponds to a certain area of said network.

22. The method of claim 20, wherein said network topology corresponds to all of said network.

23. The method of claim 7, further comprising allowing said content provider to schedule a service session.

24. The method of claim 7, further comprising allowing said content provider to schedule a repeating service session.

25. The method of claim 7, further comprising allowing said content provider to view an upload schedule associated with a service.

26. The method of claim 7, further comprising allowing said content provider to view content status.

27. A method for power conservation in a terminal coupled to a network receiver, comprising:

receiving data at said network receiver;

filtering said data based on internet protocol address; and

transferring said data to said terminal in the case where said data is recognized in said filtering.

28. The method of claim 27, wherein said filtering includes considering metadata associated with said data.

29. The method of claim 27, wherein said filtering includes considering identifiers associated with said data.

30. The method of claim 27, wherein said filtering includes considering data content.

31. The method of claim 27, wherein said filtering includes performing pattern recognition on said data.

32. The method of claim 27, wherein said network receiver is a terrestrial digital video broadcasting receiver.

33. The method of claim 27, wherein said terminal is a cellular telephone.

34. A terminal that performs filtering of incoming content, comprising:

a memory having program code stored therein;

a processor operatively connected to said memory for carrying out instructions in accordance with said stored program code; and

a unidirectional network interface;

wherein said program code, when executed by said processor, causes said processor to perform the steps of;

receiving a specification of content of interest to a user, said specification being in terms of metadata keywords;

noting unique identifiers associated with metadata files including one or more of said keywords;

monitoring incoming packets for the noted unique identifiers, each of said packets conveying a content file portion; and

bringing to said user'"'"'s attention only content files conveyed by packets that contain one of the noted unique identifiers.

35. The terminal of claim 34, wherein said metadata is electronic service guide metadata.

36. The terminal of claim 34, wherein said terminal is a cellular telephone.

37. The terminal of claim 34, wherein said unidirectional network interface is a terrestrial digital video broadcasting interface.

38. The terminal of claim 34, further comprising a bidirectional network interface.

39. The terminal of claim 38, wherein said bidirectional network interface is a universal mobile telecommunications system interface.