System and method of using a proxy server to manage lazy content distribution in a social network

• US 7,925,592 B1
• Filed: 09/27/2006
• Issued: 04/12/2011
• Est. Priority Date: 09/27/2006
• Status: Expired due to Fees

• Current Assignee: Qurio Holdings Incorporated
• Original Assignee: Qurio Holdings Incorporated
• Inventors: Amidon, Christopher, Walsh, Richard, Issa, Alfredo
• Primary Examiner(s): Augustin; Evens J
• Assistant Examiner(s): MCINTYRE, CHARLES AARON
• Application Number:
  US11/528,155
• Time in Patent Office: 1,658 Days
• Field of Search: None
• US Class Current: 705/59
• 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: G06F 21/6218 to a system of files or objects, e.g. local or distributed file system or database
• CPC Class Codes: G06F 2221/2141 Access rights, e.g. capability lists, access control lists, access tables, access matrices
• 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 63/10 for controlling access to devices or network resources
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks

Abstract

A proxy server and corresponding method are provided for managing the controlled distribution of digital content as it propagates through a social network. A proxy server receives digital content and associated distribution parameters from an originating peer. The distribution parameters define access rights for n allowable levels of possible network distribution. After other peers are invited to share the digital content or the invited peers request access to the digital content, the proxy server generates a rights-managed form of the requested digital content in accordance with the access rights established by the originating peer for the level associated with the requesting peer(s). The proxy server forwards a copy of a content key and other content identifiers to an associated license server and then sends the rights-managed form of digital content to the requesting peer(s).

Claims

1. A method of distributing rights-managed forms of digital content among nodes comprising computing devices, comprising the following steps:

receiving digital content comprising an original form for distribution to one or more downstream nodes and receiving distribution parameters associated with the digital content from an originating node, wherein the distribution parameters define access rights for a plurality of levels based on a number of nodes in a path of an invitation to view the digital content that is propagated from the originating node to the one or more downstream nodes, and wherein at least some of the one or more downstream nodes further propagate the invitation to other downstream nodes;

receiving a request for the digital content from a respective downstream node of the one or more downstream nodes that received the invitation to view the digital content;

in response to receiving the request, determining a one of the plurality of levels that corresponds to the respective downstream node based on a number of downstream nodes in the path of the invitation from the originating node to the respective downstream node;

obtaining a rights-managed form of the digital content that is derived from the original form and that is different from the original form in accordance with access rights established by the originating node for the one of the plurality of levels that corresponds to the respective downstream node; and

sending a copy of the rights-managed form of the digital content to the respective downstream node.

2. The method of claim 1, wherein said obtaining step occurs after receiving a request for access to the digital content from the respective downstream node.

3. The method of claim 1, wherein said obtaining step occurs after the invitation to view the digital content is sent from the one or more downstream nodes to another of the one or more downstream nodes.

4. The method of claim 1, wherein the distribution parameters defined by the originating node comprise at least one alteration definition for one or more of the plurality of levels.

5. The method of claim 4, wherein each alteration definition identifies one or more of a degradation characteristic for applying to the digital content and an augmentation file for adding to the digital content.

6. The method of claim 1, further comprising a step of caching a copy of the rights-managed form of the digital content.

7. The method of claim 1, further comprising a step of generating a unique key for the digital content.

8. The method of claim 7, further comprising a step of storing the unique key in a local database.

9. The method of claim 7, further comprising a step of sending a copy of the unique key and a content identifier to a license server.

10. The method of claim 1, wherein said step of receiving digital content and distribution parameters is performed via a secure connection.

11. The method of claim 1, further comprising a step of receiving and storing updates to the distribution parameters associated with the digital content.

12. The method of claim 1, wherein obtaining the rights-managed form of the digital content further comprises generating a plurality of respective rights-managed forms of the digital content, wherein each of the plurality of respective rights-managed forms of the digital content corresponds to a different one of the plurality of levels defined by the originating node, and wherein sending the copy of the rights-managed form of the digital content further comprises sending the copy of the rights-managed form of the digital content that corresponds to the one of the plurality of levels to the respective downstream node.

13. The method of claim 12, further comprising a step of caching each of the respective rights-managed forms generated for each of the plurality of levels.

14. The method of claim 1, further comprising a step of designating another downstream node to perform the obtaining and sending steps.

15. The method of claim 14, further comprising a step of fetching and caching the copy of the rights-managed form of the digital content generated by the another downstream node.

18. The method of claim 1, wherein determining the one of the plurality of levels that corresponds to the respective downstream node based on the number of downstream nodes in the path of the invitation from the originating node to the respective downstream node further comprises determining that the invitation propagated from the originating node to a first downstream node, from the first downstream node to a second downstream node, and from the second downstream node to the respective downstream node, and determining that the respective downstream node is a third downstream node in the path of the invitation from the originating node to the respective downstream node.

16. A method of selecting a particular resolution of digital content from a plurality of resolutions of the digital content, comprising:

receiving a request for digital content from a respective recipient computing device which received an invitation to view the digital content;

determining a recipient level of a plurality of recipient levels that corresponds to the respective recipient computing device based on a number of recipient nodes in a path of the invitation to view the digital content that propagated through a plurality of recipient computing devices from an originating computing device to the respective recipient computing device;

selecting a first resolution of the digital content from a plurality of different resolutions of the digital content based on the recipient level, wherein each of the plurality of different resolutions of the digital content corresponds to a different recipient level; and

effecting delivery of the first resolution of the digital content to the respective recipient computing device.

17. A server computing device comprising:

a communication interface adapted to interface with a network; and

a processor unit coupled to the communication interface and programmed to;

receive a request for digital content from a respective recipient computing device which received an invitation to view the digital content;

determine a recipient level of a plurality of recipient levels that corresponds to the respective recipient computing device based on a number of recipient nodes in a path of the invitation to view the digital content that propagated through a plurality of recipient computing devices from an originating computing device to the respective recipient computing device;

select a first resolution of the digital content from a plurality of different resolutions of the digital content based on the recipient level, wherein each of the plurality of different resolutions of the digital content corresponds to a different recipient level; and

effect delivery of the first resolution of the digital content to the respective recipient computing device.