System and method for automated and optimized file transfers among devices in a network

• US 20050273514A1
• Filed: 05/09/2001
• Published: 12/08/2005
• Est. Priority Date: 12/22/2000
• Status: Abandoned Application

• Current Assignee: Radiance Technologies, Inc. (Comcast Corporation)
• Original Assignee: Radiance Technologies, Inc. (Comcast Corporation)
• Inventors: Munshi, Ashfaq A., Rojas, Luis O., Milkey, Ray, Ruttenberg, John C., Lichtenstein, Walter D., Tobagi, Fouad A., Subramaniam, Srikanth, Lemke, David
• Application Number:
  US09/852,464
• Publication Number:
  US 20050273514A1
• Time in Patent Office: Days
• US Class Current: 709/232
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/612 for unicast
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/288 Distributed intermediate devices, i.e. intermediate devices for interaction with other intermediate devices on the same level
• CPC Class Codes: H04L 67/306 User profiles
• CPC Class Codes: H04L 67/568 Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04L 67/5682 Policies or rules for updating, deleting or replacing the stored data
• CPC Class Codes: H04L 67/62 Establishing a time schedule for servicing the requests
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]

Abstract

A system for automated and optimized file transfers among devices in a network comprises a client configured to request a file transfer, a server configured to transfer the requested file to the client, and a scheduling module configured to schedule delivery of the file to the client. The scheduling module preferably schedules the delivery of the file to be completed by a deadline. In an alternate embodiment, the file is transferred to a device in the network that did not send the request. The file transfer may be requested by a user at the client or may be requested by a pre-fetch module of the client.

Claims

1. A method for transferring files among devices in a network, comprising:

requesting via a destination device a transfer of a file from a source device;

scheduling the transfer of the file from the source device to the requesting destination device, wherein the transfer is scheduled to be completed by a deadline; and

transferring the file from the source device to the requesting destination device, wherein the file transfer from the source device to the requesting destination device is complete by the scheduled deadline.

2. The method of claim 1, wherein scheduling comprises determining available bandwidth between the source device and the destination device.

3. The method of claim 1, wherein scheduling comprises determining available storage at the destination device.

4. The method of claim 1, wherein a user at the destination device specifies the deadline.

5. The method of claim 1, further comprising identifying the file to be transferred from the source device.

6. The method of claim 5, wherein a user at the destination device identifies die file to be transferred from the source device.

7. The method of claim 5, wherein a pre-fetch module at the destination device identifies the file to be transferred from the source device.

8. The method of claim 7, wherein the pre-fetch module is configured to identify files to be transferred based on observations of user behavior.

9. The method of claim 7, wherein the pre-fetch module is configured to identify files to be transferred according to predetermined user preferences.

10. The method of claim 1, wherein a device other than the destination device requests the file transfer from the source device.

11. A system for transferring files among devices in a network, comprising:

a destination device configured to send a request to a source device for transfer of a file from the source device to the destination device;

a source device configured to transfer the file to the destination device requesting the transfer of the file; and

a scheduling module configured to schedule the transfer of the file from the source device in response to the request by the destination device.

12. The system of claim 11, wherein the scheduling module schedules the transfer to be complete by a deadline.

13. The system of claim 12 wherein a user at the destination device specifies the deadline.

14. The system of claim 13, wherein a user at the destination device identifies the file to be transferred from the source device.

15. The system of claim 11, wherein the destination device comprises a pre-fetch module configured to identify the file to be transferred from the source device.

16. The system of claim 15, wherein the pre-fetch module is configured to identify files to be transferred based on observations of user behavior.

17. The system of claim 15, wherein the pre-fetch module is configured to identify files to be transferred according to predetermined user preferences.

18. The system of claim 11, wherein the scheduling module schedules the transfer of the file based on available bandwidth at the source device and the destination device.

19. The system of claim 11, wherein the scheduling module schedules the transfer of the file based on available storage at the destination device.

20. The system of claim 11, wherein the scheduling module schedules the transfer of the file based on available bandwidth in the network.

22. The system of claim 11, wherein the scheduling module resides at the destination device.

23. The system of claim 11, wherein the scheduling module resides in both the destination device and the source device.

24. The system of claim 11, wherein the scheduling module resides in a cache device in the network.

25. The system of claim 11, wherein the scheduling module resides in the destination device, the source device, and a cache device in the network.

21. The system of clam 11, wherein the scheduling module resides at the source device.

26. A method for transferring files among devices in a network, comprising:

identifying a file via a destination device, wherein the file is to be transferred to the destination device;

selecting a source device to transfer the file; and

scheduling the transfer of the file from the selected source device to the destination device.

28. The method of claim 26 wherein the the file is identified according to a user subscription.

29. The method of claim 26, wherein the destination device identifies the file according to observations of user behavior at the destination device.

30. The method of claim 26, further comprising completing transfer of the file from the source device to the destination device by a deadline.

32. The method of claim 30, wherein a user at the destination device causes the destination device to identify the file to be transferred from the source device to the destination device.

33. The method of claim 30, wherein a user at the destination device in the network determines the deadline for completion of the transfer of the file.

34. The method of claim 26, wherein scheduling comprises determining available bandwidth at the source device and the destination device.

35. The method of claim 26, wherein scheduling comprises determining available bandwidth in the network.

36. The method of claim 26, wherein the source device is a server.

37. The method of claim 26, wherein the source device is a cache device in the network.

27. (canceled)

31. (canceled)

38. A system for delivering content in a network, comprising:

a client configured to send to a server a request for delivery of the content;

a scheduling module configured to determine a schedule for delivery of the content from the server to the client requesting the delivery of the contents and

the server configured to deliver the content to the requesting client in response to the request and according to the schedule.

39. The system of claim 38, wherein the content is delivered to the client without a user being present at the client during delivery.

40. The system of claim 38, wherein the scheduling module resides at the server.

41. The system of claim 38, wherein the scheduling module resides at the client.

42. The system of claim 38, wherein the scheduling module resides in a control server in the network.

43. The system of claim 42, wherein the control server monitors bandwidth and storage resources in the network and provides bandwidth and storage resources data to the scheduling module.

44. The system of claim 38, wherein the server attaches digital rights management rules to the content prior to delivery.

45. The system of claim 38, wherein the client comprises a digital rights management module configured to implement digital rights management rules attached to the content.

46. The system of claim 38, wherein the client is a general-purpose computer.

47. The system of claim 38, wherein the client is a set-top box.

48. The system of claim 38, wherein the request for delivery comprises a deadline for delivery, the scheduling module determines a schedule for delivery to meet the deadline, and the server completes delivery of the content to the client by the deadline.

49. The system of claim 38, wherein the client comprises a pre-fetch module configured to pre-fetch content from the server.

50. The system of claim 49, wherein the pre-fetched content is stored in a cache at the client.

51. The system of claim 50, wherein the client comprises a mini web server configured to receive a request for content from a browser, determine that the requested content resides in the cache as pre-fetched content, and send the requested content from the cache to the browser instead of requesting the content from the server.

52. The system of claim 50, wherein specifically requested content is stored in the cache at the client.

53. The system of claim 52, wherein the client comprises a cache management module configured to determine the size of the cache.

54. The system of claim 52, wherein the client comprises a cache management module configured to organize the content in the cache.

55. The system of claim 52, wherein the client comprises a cache management module configured to implement cache replacement algorithms to add or remove content from the cache.

56. The system of claim 50, wherein the client comprises a cache management module configured to monitor usage of the pre-fetched content in the cache.

57. A system for transferring files among devices in a network, comprising:

means for requesting at a destination device a transfer of a file from a source device;

means for scheduling the transfer of the file from source device to the destination device to be completed by a deadline; and

means for transferring the file from the source device to the destination device, whereby the file transfer is complete by the deadline.

58. A system for transferring files among devices in a network, comprising:

a plurality of servers configured to deliver content to the devices in the network;

a plurality of clients configured to receive content from the plurality of servers; and

a scheduling module configured to determine schedules for delivery of content from the plurality of servers to the plurality of clients, the schedules being based on available bandwidth at the plurality of servers, available bandwidth at the plurality of clients, and available bandwidth in the network between the plurality of servers and clients.