System and method for content validation

• US 10,511,893 B2
• Filed: 03/16/2017
• Issued: 12/17/2019
• Est. Priority Date: 12/10/2008
• Status: Expired due to Fees

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Ramakrishnan, Kadangode K., Gopalakrishnan, Vijay, Yu, Fang
• Primary Examiner(s): Mejia, Anthony
• Application Number:
  US15/460,689
• Publication Number:
  US 20170188111A1
• Time in Patent Office: 1,006 Days
• Field of Search: 709232
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 21/26258 for generating a list of items to be played back in a given order, e.g. playlist, or scheduling item distribution according to such list retrieval of multimedia data based on playlists G06F16/40
• CPC Class Codes: H04N 21/47202 for requesting content on demand, e.g. video on demand
• CPC Class Codes: H04N 21/632 using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices broadcast-related systems characterised by transmission among terminal devices H04H60/80; distributed application using peer-to-peer [P2P] networks H04L67/104
• CPC Class Codes: H04N 21/64322 IP
• CPC Class Codes: H04N 21/8352 involving content or source identification data, e.g. Unique Material Identifier [UMID]
• CPC Class Codes: H04N 21/8456 by decomposing the content in the time domain, e.g. in time segments
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A method includes receiving at a directory server a notification from a client system, where the notification indicates that the first client received a corrupt packet of a playfile from a first peer. The method also includes determining if the first peer is a poor quality peer, updating a first peer score for the first peer if the first peer is not a poor quality peer, identifying a second peer that is not on a blacklist, and providing a peer identification associated with the second peer to the client system.

Claims

1. A system, comprising:

a memory that stores instructions; and

a processor that executes the instructions to perform operations, the operations comprising;

receiving a notification from a client system, wherein the notification indicates that the client system received a corrupt packet from a first peer;

updating a first peer score for the first peer if the first peer is not a poor quality peer, wherein the first peer score incorporates a ratio of corrupt packets to good packets received from the first peer; and

providing, to the client system, a peer identification associated with a second peer that is not on a black list so as to enable the client system to obtain an uncorrupted packet corresponding to the corrupt packet.

2. The system of claim 1, wherein the operations further comprise determining if the first peer is the poor quality peer.

3. The system of claim 1, wherein the operations further comprise determining if the second peer is not on the black list.

4. The system of claim 1, wherein the operations further comprise determining that the first peer is the poor quality peer when the first peer score exceeds a threshold.

5. The system of claim 1, wherein the operations further comprise determining whether the first peer intentionally provided the corrupt packet to the client system.

6. The system of claim 1, wherein the operations further comprise adding the first peer to the black list if the first peer is the poor quality peer.

7. The system of claim 1, wherein the operations further comprise receiving a request for a peer identifier from the client system.

8. The system of claim 7, wherein the operations further comprise determining a quality peer for the client system in response to receiving the request for the peer identifier.

9. The system of claim 1, wherein the operations further comprise determining that the second peer has a packet needed by the client system.

10. The system of claim 1, wherein the operations further comprise determining that the second peer has a second peer score that is lower than a threshold.

11. The system of claim 1, wherein the operations further comprise determining the first peer score based on a number of client systems receiving bad packets from the first peer.

12. A method, comprising:

receiving a notification from a client system, wherein the notification indicates that the client system received a corrupt packet from a first peer;

generating a first peer score for the first peer, wherein the first peer score incorporates a ratio of corrupt packets to good packets received from the first peer;

adding, by utilizing instructions from a memory that are executed by a processor, the first peer to a black list if the first peer is a poor quality peer; and

providing, to the client system, a peer identification associated with a second peer that is not on the black list so as to enable the client system to obtain an uncorrupted packet corresponding to the corrupt packet.

13. The method of claim 12, further comprising updating the first peer score for the first peer if the first peer is not the poor quality peer.

14. The method of claim 12, further comprising determining if the first peer is the poor quality peer.

15. The method of claim 12, further comprising determining whether the first peer intentionally provided the corrupt packet to the client system.

16. The method of claim 12, further comprising receiving a request for a peer identifier from the client system.

17. The method of claim 16, further comprising determining a quality peer for the client system in response to receiving the request for the peer identifier.

18. The method of claim 12, further comprising determining that the second peer has a packet needed by the client system.

19. The method of claim 12, further comprising determining a first peer score for the first peer based on a number of client systems receiving bad packets from the first peer.

20. A computer readable device comprising instructions, which, when loaded and executed by a processor, cause the processor to perform operations, the operations comprising:

receiving a notification from a client system, wherein the notification indicates that the client system received a corrupt packet from a first peer;

determining if the first peer is a poor quality peer;

updating a first peer score for the first peer if the first peer is not the poor quality peer, wherein the first peer score incorporates a ratio of corrupt packets to good packets received from the first peer; and

providing, to the client system, a peer identification associated with a second peer that is not on a black list so as to enable the client system to obtain an uncorrupted packet corresponding to the corrupt packet.