Detecting distribution of multimedia content

• US 7,945,924 B2
• Filed: 11/15/2007
• Issued: 05/17/2011
• Est. Priority Date: 11/15/2007
• Status: Active Grant

• Current Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Original Assignee: AT&T Intellectual Property I LP (AT&T, Inc.)
• Inventors: Li, Zhi, Ghosal, Dipak, Ou, Canhui, Savoor, Raghvendra
• Primary Examiner(s): Pendleton, Brian T
• Assistant Examiner(s): Alcon, Fernando
• Application Number:
  US11/940,768
• Publication Number:
  US 20090133079A1
• Time in Patent Office: 1,279 Days
• Field of Search: None
• US Class Current: 725/9
• CPC Class Codes: H04L 41/0896 Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities flow or congestion control using dynamic resource allocation, e.g. in-call renegotiation, H04L47/76
• CPC Class Codes: H04L 43/00 Arrangements for monitoring or testing data switching networks
• CPC Class Codes: H04L 43/04 Processing captured monitoring data, e.g. for logfile generation
• CPC Class Codes: H04L 43/16 Threshold monitoring
• CPC Class Codes: H04N 21/2541 Rights Management protecting software against unauthorised usage in a vending or licensing environment G06F21/10; security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08
• CPC Class Codes: H04N 21/835 Generation of protective data, e.g. certificates protecting software against unauthorised usage in a vending or licensing environment G06F21/10

Abstract

A system and method is disclosed for detecting distribution of multimedia content. The volume level of data traffic is monitored for a plurality of users to select any users with high-bandwidth usage. The time of day and the day of the week may be considered when determining whether a user is a high-bandwidth user. Upon selecting a user as one with high-bandwidth usage, such user may be subject to packet inspections of data traffic streams. In some embodiments, content identification parameters or watermarks are added to one or more packets in a data traffic stream carrying multimedia content.

Claims

1. A data distribution detector application stored on a non-transitory computer readable medium, the distribution detector application having instructions operable for:

tracking a volume of upstream data traffic for a user;

comparing the volume of upstream data traffic to a threshold volume;

if the volume of upstream data traffic meets or exceeds the threshold volume, then;

analyzing an ordering history of the user; and

comparing an estimated volume of traffic associated with the ordering history to the volume of upstream data traffic; and

if the volume of upstream data traffic meets or exceeds the estimated volume of traffic associated with the ordering history, then;

comparing an identification parameter associated with the volume of traffic with one or more known identification parameters.

2. The data distribution detector application of claim 1, further having instructions operable for:

accessing a content signature module, wherein the content signature module stores the one or more known identification parameters.

3. The data distribution detector application of claim 2, wherein the distribution detector application is communicatively coupled to a client-facing tier switch.

4. The data distribution detector application of claim 3, wherein a residential gateway tracks the volume of data traffic for the user and reports the volume of data traffic to the distribution detector application.

5. The data distribution detector application of claim 2, wherein the content signature module provides for assigning the one or more known identification parameters.

6. The data distribution detector application of claim 5, wherein the identification parameter is a watermark.

7. The data distribution detector application of claim 1, wherein comparing an estimated volume of traffic associated with the ordering history to the volume of data traffic includes analyzing a video-on-demand ordering history.

8. The data distribution detector application of claim 1, wherein tracking a volume of data traffic for a user includes considering a time of day associated with data traffic.

9. The data distribution detector application of claim 1, further including:

a set-top box for tracking a second volume of downstream traffic.

10. A data processing system for detecting distribution of multimedia content, the data processing system having software instructions stored on a non-transitory computer readable medium that enable the data processing system to:

attach a content identification parameter to a portion of the multimedia content;

profile a plurality of users to identify a portion of the plurality of users with high bandwidth usage, wherein high bandwidth usage includes upstream data traffic exceeding a predetermined threshold;

analyzing ordering histories for each of the portion of the plurality of users;

determining estimated volumes of traffic associated with each ordering history;

taking action when a volume of upstream data traffic exceeds the corresponding estimated volume of traffic.

11. The data processing system of claim 10, wherein taking the action comprises inspecting the upstream traffic for the content identification and storing a portion of the upstream data traffic for non-real-time analysis.

12. The data processing system of claim 10, wherein analyzing ordering histories for each of the portion of the plurality of users includes characterizing a number of video-on-demand movies ordered by each of the portion of the plurality of users.

13. The data processing system of claim 10, wherein taking the action includes attaching a content identification parameter to a portion of the multimedia content includes including placing a security identifier in one or more packets that comprise the multimedia content.

14. The data processing system of claim 13, wherein the data processing system is further enabled to:

create the security identifier for placement in one or more packets that comprise the multimedia content.

15. The data processing system of claim 14, wherein the one or more packets are datagram protocol (UDP) datagrams.

16. A method of detecting distribution of multimedia content, the method comprising:

monitoring, by a server, a volume of upstream data traffic for a user;

analyzing an ordering history of the user;

a processor comparing an estimated volume of traffic estimated based on the associated ordering history to the volume of upstream data traffic; and

when the volume of upstream data traffic meets or exceeds the estimated volume of traffic associated with the ordering history, comparing a content identification parameter associated with the volume of upstream data traffic with one or more known identification parameters.

17. The method of claim 16, further comprising:

recording a video-on-demand parameter for the user, wherein the video-on-demand parameter relates to a quantity of video-on-demand movies ordered by the user.

18. The method of claim 16, wherein the content identification parameter is a watermark, wherein comparing the content identification parameter includes comparing the watermark associated with one or more packets in the volume of upstream data traffic with a known watermark.

19. The method of claim 16, wherein comparing the the content identification parameter occurs substantially in real-time.

20. The method of claim 16, wherein a plurality of packets from the volume of upstream data traffic are stored in a memory, and wherein comparing the content identification parameter occurs not in real-time.

21. The method of claim 16, wherein a network receives a parameter for the volume of upstream data traffic from an apparatus that is customer premises equipment.

22. The method of claim 16, wherein the monitoring of the volume of upstream data traffic includes detecting that the user has relatively high traffic volume during a non-peak time slot compared to other users.