Content storage and delivery system and associated method and device

• US 8,316,411 B2
• Filed: 12/06/2006
• Issued: 11/20/2012
• Est. Priority Date: 12/06/2006
• Status: Active Grant

• Current Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Original Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Inventors: Weintraub, Michael A., Elby, Stuart D.
• Primary Examiner(s): Srivastava, Vivek
• Assistant Examiner(s): Le, Rong
• Application Number:
  US11/567,541
• Publication Number:
  US 20080141328A1
• Time in Patent Office: 2,176 Days
• Field of Search: None
• US Class Current: 725/134
• CPC Class Codes: H04N 21/23106 involving caching operations prefetching while addressing of a memory level in which the access to the desired data or data block requires associative addressing means within memory systems or architectures G06F12/0862; caching at an intermediate stage in a data network H04L67/568
• CPC Class Codes: H04N 21/23113 involving housekeeping operations for stored content, e.g. prioritizing content for deletion because of storage space restrictions storage management, e.g. defragmentation G06F3/0604; snloading stored programs G06F9/445; housekeeping operations in file systems, e.g. deletion policies G06F16/10; buffering arrangements in a network node or in an end terminal in packet networks H04L49/90
• CPC Class Codes: H04N 21/2747 Remote storage of video programs received via the downstream path, e.g. from the server
• CPC Class Codes: H04N 21/4331 Caching operations, e.g. of an advertisement for later insertion during playback
• CPC Class Codes: H04N 21/4335 Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions storage management, e.g. defragmentation G06F3/0604; unloading stored programs G06F9/445; storage management in file systems G06F16/10; buffering arrangements in a network node or in an end terminal in packet networks H04L49/90
• CPC Class Codes: H04N 21/4622 Retrieving content or additional data from different sources, e.g. from a broadcast channel and the Internet web site content organization and management for information retrieval from the Internet G06F16/958; transmission by internet of broadcast information H04H60/82; stock exchange data over packet-switching network H04L12/1804; push services including data channel over packet-switching network H04L12/1859
• CPC Class Codes: H04N 21/6405 Multicasting data broadcast and multicast in packet switching networks H04L12/18
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A system is provided for the storage of content on a network and the delivery of content to subscriber locations. The system includes routers and subscriber set-top boxes in communication with each other and a main content source. Content is delivered over a packet-switching network according to a peer to peer file distribution protocol and is stored in a storage area of the subscriber set-top box, such that each subscriber set-top box is configured to transmit and receive content to and from the main content source and other set-top boxes connected to the network. The set-top boxes may identify a preferred source of content based on various factors, such as geographic distance, Internet Protocol (IP) distance, available bandwidth, integrity of the content, etc. An associated method for accessing content and a set-top box for facilitating the storage and delivery of content are also provided.

Claims

1. A content storage and delivery system comprising:

a plurality of set-top boxes configured to receive and store content and to interface with a communications network configured to operate according to a peer to peer file distribution protocol;

a first router in communication with a main content source;

at least one second router in communication with at least one of the set-top boxes; and

at least one intermediate router in communication with the first router and the at least one second router, each intermediate router defining a hub to service a subset of the set-top boxes, each set-top box in the subset of set-top boxes configured to access at least one other set-top box within the subset of the set-top boxes serviced by the hub and independent of communication with the first router,

wherein each set-top box in the plurality of set-top boxes includes a partitioned storage area with at least one partition accessible by a content provider, and wherein the routers communicate in accordance with the peer to peer file distribution protocol to provide content to the plurality of set-top boxes via the communications network,

wherein the at least one second router, the at least one intermediate router, the first router, and the main content source are arranged in a hierarchical network topology such that at least one upstream network communication pathway is formed from the at least one secondary router to the at least one intermediate router to the first router to the main content source,

wherein at least one of the set-top boxes in the plurality of set-top boxes is configured to query, in response to a user request for content, a plurality of content sources for the requested content, and

wherein querying the plurality of content sources in response to the user request for content comprises issuing a query to a first subset of content sources for the requested content and transmitting the query to a next available upstream router to query a larger subset of content sources serviced by the upstream router if the requested content is not available from the first subset.

2. The system of claim 1 wherein the querying set-top box in the plurality of set-top boxes is configured to determine a preferred source of the requested content from the plurality of content sources, the preferred source having a geographic distance or an Internet Protocol network distance that is closer to the querying set-top box in the plurality of set-top boxes as compared to other content sources.

3. The system of claim 1 wherein the querying set-top box in the plurality of set-top boxes is configured to determine a preferred source of the requested content from the plurality of content sources, the preferred source being accessible by the querying set-top box in the plurality of set-top boxes through a connection that is faster as compared to connections from the querying set-top box in the plurality of set-top boxes to other content sources.

4. The system of claim 1 wherein the content provider accesses the at least one partition of the partitioned storage area of each set-top box in the plurality of set-top boxes independent of subscribers of the set-top boxes in the plurality of set-top boxes.

5. The system of claim 1 wherein the at least one partition of the partitioned storage area is configured to store content received by the set-top boxes in the plurality of set-top boxes.

6. The system of claim 5 wherein the at least one partition of the partitioned storage area is configured to delete the stored content after a predetermined period of time has lapsed.

7. The system of claim 1 wherein the content is fragmented, and wherein the at least one partition of the partitioned storage area is configured to store each fragment and to permit access to each fragment independent of other fragments.

8. The system of claim 1 further comprising a plurality of main content sources, each main content source in communication with the other main content sources through a plurality of associated first routers.

9. The system of claim 1 wherein the at least one second router comprises a plurality of second routers and each set-top box in the plurality of set-top boxes is associated with its own second router.

10. The system of claim 9 further comprising a plurality of optical network termination units configured to convert the content to a signal that is compatible with the plurality of set-top boxes, each of the second routers being located between one of the optical network termination units and one of the set-top boxes in the plurality of set-top boxes.

11. The system of claim 1 wherein the first router is configured to control distribution of content from the main content source to the at least one intermediate router.

12. A method of accessing content comprising:

querying, in response to a user request for content, a plurality of content sources connected to a communications network for the requested content, the plurality of content sources being configured in at least one first subset and a larger subset, each first subset defining a network between one hub and a set of content sources, the larger subset defining a larger network between one or more first subsets, the query being initially confined to content sources within the first subset where the query was initiated, wherein a plurality of hierarchically configured routers connected to the communication network enforce policy to determine to which of the subsets of the content sources to route the query;

determining a preferred source of the requested content at a subscriber location from among the content sources;

obtaining a copy of the requested content at the subscriber location from the preferred source;

storing the requested content in a storage area at the subscriber location; and

allowing a plurality of remote subscribers to access content stored in the storage area at the subscriber location,

wherein querying the plurality of content sources in response to the user request for content comprises issuing a query to the first subset of content sources for the requested content and transmitting the query to a next available upstream router to query the larger subset of content sources serviced by the upstream router if the requested content is not available from the first subset.

13. The method of claim 12 wherein obtaining a copy of the requested content comprises requesting the requested content from the preferred source and storing the requested content on one of a video serving domain disk or a virtual disk.

14. The method of claim 12 further comprising requesting fragments of the requested content from different content sources independent of a source of other fragments and assembling the fragments into a complete content file.

15. The method of claim 12 further comprising evaluating the requested content against a predefined standard, aborting content not meeting the predefined standard, and determining an alternate preferred source for the requested content.

16. The method of claim 12 further comprising evaluating the requested content against a predefined standard and re-obtaining the requested content from the preferred source.

17. The method of claim 12 wherein determining a preferred source of the requested content comprises determining a geographic distance or an Internet Protocol network distance between each source and the subscriber location and choosing the source associated with the shortest distance.

18. The method of claim 12 wherein determining a preferred source of the requested content comprises determining an available bandwidth associated with each source and choosing the source associated with the largest bandwidth.

19. The method of claim 12 further comprising deleting the requested content from the subscriber location after a predetermined length of time.

20. A set-top box comprising:

an interface configured to communicate with a network, the interface configured to transmit a query for content to a hub configured to service a set of set-top boxes, and, when the queried content is not available in the set of set-top boxes serviced by the hub, the interface is configured to communicate with an upstream hub configured to service a larger set of set-top boxes to locate the queried content, the hub and the upstream hub comprising hierarchically configured routers that enforce policy to determine to which of the sets of set-top boxes to route the query;

a storage area partitioned into at least two partitions with at least one partition accessible by a content provider; and

a receiver and decoder configured to receive digital content through the interface, store the digital content in the at least one partition of the storage area accessible by the content provider, and convert the digital content for display on the subscriber television,

wherein the storage area is configured to allow at least one remote set-top box to access the at least one partition of the storage area and to copy digital content to the at least one remote set-top box.

21. The set-top box of claim 20 wherein the interface is configured to communicate in accordance with a peer to peer file distribution protocol.

22. The set-top box of claim 20 further comprising a processor for determining a preferred source of the digital content based on at least one of a bandwidth of a source of the digital content or a distance between the source and the set-top box.