Method and apparatus for hierarchical distribution of video content for an interactive information distribution system

• US 8,683,534 B2
• Filed: 04/03/2012
• Issued: 03/25/2014
• Est. Priority Date: 04/01/1999
• Status: Expired due to Fees

• Current Assignee: Comcast IP Holdings I LLC (Comcast Corporation)
• Original Assignee: Comcast IP Holdings I LLC (Comcast Corporation)
• Inventors: Armstrong, James B., Goode, Christopher W. B.
• Primary Examiner(s): Chung, Jason J
• Assistant Examiner(s): Chowdhury, Sumaiya A
• Application Number:
  US13/438,445
• Publication Number:
  US 20120291076A1
• Time in Patent Office: 721 Days
• Field of Search: 725 91- 92, 725114-115, 725/145, 709213-216, 709/231, 709/235, 711/117, 711/159, 711/165, 711/170, 711/173
• US Class Current: 725/92
• CPC Class Codes: H04L 2012/5632 Bandwidth allocation
• CPC Class Codes: H04L 65/1069 Session establishment or de-establishment
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 21/2225 Local VOD servers
• 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 21/232 Content retrieval operation locally within server, e.g. reading video streams from disk arrays storage management G06F3/0604; details of querying and searching of video data from a database G06F16/739
• CPC Class Codes: H04N 21/2393 involving handling client requests scheduling or organising the servicing of application requests H04L67/60
• CPC Class Codes: H04N 21/25891 being end-user preferences retrieval of video data in a video database based on user preferences G06F16/739; arrangements for recognizing users' preferences H04H60/46; user profiles in network data switching protocols H04L67/306; processing of user preferences or user profiles in wireless networks H04W8/18
• CPC Class Codes: H04N 21/26208 the scheduling operation being performed under constraints
• CPC Class Codes: H04N 7/17318 Direct or substantially direct transmission and handling of requests

Abstract

A method and apparatus for storing and distributing video information in an interactive information distribution system by storing video information on either a centralized or de-centralized secondary storage partition in a network of provider and subscriber equipment, and therein distributing the video information to a subscriber having made a request for such video information.

Claims

1. An apparatus comprising circuitry to:

responsive to a first video asset changing from being infrequently requested to being frequently requested, select and transmit the first video asset to at least one primary partition of each of at least two servers; and

responsive to second video asset changing from being frequently requested to being infrequently requested, select and transmit the second video asset to at least one secondary partition of at least one, but less than all, of the at least two servers.

2. The apparatus of claim 1, wherein the circuitry causes the apparatus to remove the second video asset from the at least one primary partition of each of the at least two servers.

3. The apparatus of claim 1, wherein the circuitry causes the apparatus to selectively distribute infrequently requested video assets among one or more of the at least two servers.

4. The apparatus of claim 3, wherein the circuitry causes the apparatus to distribute frequently requested video assets among all of the at least two servers.

5. The apparatus of claim 1, wherein the circuitry causes the apparatus to:

identify a request for a particular video asset; and

determine whether the particular video asset is to be directly streamed from a first one of the at least two servers to a source of the request in response to the request, or is to be migrated from the first one of the at least two servers to a second one of the at least two servers and then streamed from the second one of the at least two servers to the source.

6. The apparatus of claim 5, wherein the circuitry causes the apparatus to make the determination based on current usage of the particular video asset by other users besides a user who originated the request.

7. The apparatus of claim 1, wherein the circuitry causes the apparatus to identify a plurality of threshold request rates for each of a plurality of corresponding video assets, and for each of the plurality of threshold request rates, identify a corresponding indication of how widely the corresponding video asset is to be distributed throughout the at least two servers.

8. The apparatus of claim 7, wherein the circuitry causes the apparatus to identify a time of day corresponding to each of the plurality of threshold request rates, and to use one of the plurality of threshold request rate'"'"'s corresponding time of day to determine how widely the corresponding video asset is to be distributed throughout the at least two servers.

9. The apparatus of claim 1, wherein the circuitry causes the apparatus to compare route efficiencies for a plurality of delivery routes to supply a requested video asset to a requesting device or user.

10. The apparatus of claim 1, wherein the circuitry causes the apparatus to cause one of the at least servers to deliver a requested video asset to a requesting device using multiple simultaneous streams to deliver the requested asset at a rate faster than a normal playback rate.

11. An method comprising:

in response to a first video asset changing from being infrequently requested video to being frequently requested, selecting and transmitting the first video asset to at least one primary partition of each of at least two servers; and

in response to a second video asset changing from being frequently requested to being infrequently requested, selecting and transmitting the second video asset to at least one secondary partition of at least one, but less than all, of the at least two servers.

12. The method of claim 11, further comprising removing the second video asset from the at least one primary partition of each of the at least two servers.

13. The method of claim 11, further comprising selectively distributing infrequently requested video assets among one or more of the at least two servers.

14. The method of claim 13, further comprising distributing frequently requested video assets among all of the at least two servers.

15. The method of claim 11, further comprising:

identifying a request for a particular video asset; and

determining whether the particular video asset is to be directly streamed from a first one of the at least two servers to a source of the request in response to the request, or is to be migrated from the first one of the at least two servers to a second one of the at least two servers and then streamed from the second one of the at least two servers to the source.

16. The method of claim 15, further comprising making the determination based on current usage of the particular video asset by other users besides a user who originated the request.

17. The method of claim 11, further comprising identifying a plurality of threshold request rates for each of a plurality of corresponding video assets, and for each of the plurality of threshold request rates, identifying a corresponding indication of how widely the corresponding video asset is to be distributed throughout the at least two stream servers.

18. The method of claim 17, further comprising identifying a time of day corresponding to each of the plurality of threshold request rates, and using one of the plurality of threshold request rate'"'"'s corresponding time of day to determine how widely the corresponding video asset is to be distributed throughout the at least two servers.

19. The method of claim 11, further comprising comparing route efficiencies for a plurality of delivery routes to supply a requested video asset to a requesting device or user.

20. The method of claim 11, further comprising delivering a requested video asset to a requesting device using multiple simultaneous streams to deliver the requested asset at a rate faster than a normal playback rate.