Methods and apparatus for downloading a file from a server

• US 6,606,646 B2
• Filed: 02/27/2002
• Issued: 08/12/2003
• Est. Priority Date: 01/19/2000
• Status: Expired due to Term

• Current Assignee: SPEEDbit Ltd. (SPEEDbit, Inc.)
• Original Assignee: SPEEDbit Ltd. (SPEEDbit, Inc.)
• Inventors: Feigenbaum, Idan
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): HO, CHUONG T
• Application Number:
  US10/083,394
• Publication Number:
  US 20020083133A1
• Time in Patent Office: 531 Days
• Field of Search: 709/203, 709/213, 709/227, 709/219, 709/230, 709/231, 709/224, 709/228, 709/218, 714/18, 714/4, 714/16, 714/748
• US Class Current: 709/203
• CPC Class Codes: H04L 67/01 Protocols
• CPC Class Codes: H04L 67/06 specially adapted for file transfer, e.g. file transfer protocol [FTP]
• CPC Class Codes: H04L 67/563 Data redirection of data network streams
• CPC Class Codes: H04L 67/564 Enhancement of application control based on intercepted application data
• CPC Class Codes: H04L 69/329 in the application layer [OSI layer 7]
• CPC Class Codes: H04L 69/40 for recovering from a failure of a protocol instance or entity, e.g. service redundancy protocols, protocol state redundancy or protocol service redirection management of faults, events, alarms or notifications in data switching networks H04L41/06
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A method for downloading files, the method including the steps of at a client a) requesting a proxy server to initiate a first download of a file from a first server, the first server determined by the client to lack download resume capability and the proxy server possessing download resume capability, at the proxy server b) initiating the first download of the file from the first server, and at the client c) initiating at least a second download of the file from the proxy server.

Claims

1. A method for downloading files, the method comprising:

determining that a first computer from which a file may be downloaded lacks download resume capability; and

responsive to said determining, downloading at least a portion of said file from a second computer having download resume capability.

2. A method according to claim 1 and further comprising downloading said file from said first computer to said second computer.

3. A method according to claim 1 and further comprising instructing said second computer to download said file from said first computer.

4. A method according to claim 1 and further comprising instructing said second computer to download said file from said first computer in response to said determining.

5. A method according to claim 1 wherein said downloading comprises downloading a plurality of portions of said file from said second computer.

6. A method according to claim 5 and further comprising assembling said portions of said file into a single file.

7. A method according to claim 1, wherein said downloading comprises downloading a plurality of mutually exclusive portions of said file from said second computer.

8. A method according to claim 7 and further comprising assembling said portions of said file into a single file.

9. A method according to claim 2, wherein downloading at least a portion of said file comprises downloading said portion from said second computer prior to the completion of said downloading of said file from said first computer to said second computer.

10. A system for downloading files, the system comprising:

a first computer from which a file may be downloaded and lacking download resume capability;

a second computer having download resume capability; and

a third computer operative to;

determine that said first computer lacks download resume capability; and

responsive to said determination, download at least a portion of said file from said second computer.

11. A system according to claim 10, wherein said second computer is operative to download said file from said first computer.

12. A system according to claim 10, wherein said third computer is operative to instruct said second computer to download said file from said first computer.

13. A system according to claim 10, wherein said third computer is operative to instruct said second computer to download said file from said first computer in response to determining that said first computer lacks download resume capability.

14. A system according to claim 10, wherein said third computer is operative to download a plurality of portions of said file from said second computer.

15. A system according to claim 14, wherein said third computer is operative to assemble said portions of said file into a single file.

16. A system according to claim 10, wherein said third computer is operative to download a plurality of mutually exclusive portions of said file from said second computer.

17. A system according to claim 16, wherein said third computer is operative to assemble said portions of said file into a single file.

18. A system according to claim 11, wherein said third computer is operative to download said portion from said second computer prior to completion of said download of said file from said first computer to said second computer.

19. A computer program embodied on a computer-readable medium, the computer program comprising:

a first code segment operative to determine that a first computer from which a file may be downloaded lacks download resume capability; and

a second code segment operative in response to determining that said first computer lacks download resume capability, to download at least a portion of said file from a second computer having download, resume capability.

20. A computer program according to claim 19 and further comprising a third code segment operative to instruct said second computer to download said file from said first computer.

21. A computer program according to claim 19 and further comprising a third code segment operative to instruct said second computer to download said file from said first computer in response to determining that said first computer lacks download resume capability.

22. A computer program according to claim 19, wherein said second code segment is operative to download a plurality of portions of said file from said second computer.

23. A computer program according to claim 22 and further comprising a third code segment operative to assemble said portions of said file into a single file.

24. A computer program according to claim 19, wherein said second code segment is operative to download a plurality of mutually exclusive portions of said file from said second computer.

25. A computer program according to claim 24 and further comprising a third code segment operative to assemble said portions of said file into a single file.

26. A computer program according to claim 20, wherein said second code segment is operative to download said portion from said second computer prior to completion of said download of said file from said first computer to said second computer.

27. A computer program embodied on a computer-readable medium, the computer program comprising:

a first code segment operative to determine that a first computer from which a file may be downloaded lacks download resume capability; and

a second code segment operative in response to determining that said first computer lacks download resume capability, to instruct a second computer to download said file from said first computer; and

a third code segment operative to download at least a portion of said file from said second computer having download resume capability.

28. A computer program embodied on a computer-readable medium, the computer program comprising:

a first code segment operative to determine that a first computer from which a file may be downloaded lacks download resume capability;

a second code segment operative in response to determining that said first computer lacks download resume capability, to instruct a second computer to download said file from said first computer; and

a third code segment operative to download at least a portion of said file from said second computer having download resume capability prior to completion of said download of said file from said first computer.

29. A first computer operative to determine that a second computer from which a file may be downloaded lacks download resume capability, and in response to said determination, to download at least a portion of said file from a third computer having download resume capability.

30. A first computer according to claim 29, wherein said first computer is operative to download a plurality of portions of said file from said third computer.

31. A first computer according to claim 30, wherein said first computer is operative to assemble said portions of said file into a single file.

32. A first computer according to claim 29, wherein said first computer is operative to download a plurality of mutually exclusive portions of said file from said third computer.

33. A first computer according to claim 32, wherein said first computer is operative to assemble said portions of said file into a single file.

34. A method for operating a server, said method comprising:

upon receipt of an instruction from a first computer, said first computer having determined that a second computer from which a file may be downloaded lacks download resume capability, transmitting at least a portion of said file to said first computer, wherein said server has download resume capability.

35. A method according to claim 34 and further comprising downloading said file from said second computer.

36. A method according to claim 34, wherein said transmitting comprises transmitting a plurality of portions of said file to said first computer.

37. A method according to claim 34, wherein said transmitting comprises transmitting a plurality of mutually exclusive portions of said file to said first computer.

38. A method according to claim 35, wherein transmitting at least a portion of said file to said first computer occurs prior to completion of said downloading of said file from said second computer.

39. A method for operating a server, said method comprising:

upon receipt of an instruction from a first computer, said first computer having determined that a second computer from which a file may be downloaded lacks download resume capability, downloading said file from said second computer, wherein said server has download resume capability; and

transmitting at least a portion of said file to said first computer.

40. A method for operating a server, said method comprising:

upon receipt of an instruction from a first computer, said first computer having determined that a second computer from which a file may be downloaded lacks download resume capability, downloading said file from said second computer, wherein said server has download resume capability; and

transmitting at least a portion of said file to said first computer prior to completion of downloading said file from said second computer.

41. A first computer having download resume capability and operative to, upon receiving an instruction from a second computer, said second computer having determined that a third computer from which a file may be downloaded lacks download resume capability, transmit at least a portion of said file to said second computer.

42. A first computer according to claim 41, wherein said first computer is operative to download said file from said third computer.

43. A first computer according to claim 41, wherein said first computer is operative to transmit a plurality of portions of said file to said second computer.

44. A first computer according to claim 41, wherein said first computer is operative to transmit a plurality of mutually exclusive portions of said file to said second computer.

45. A first computer according to claim 42, wherein said first computer is operative to transmit said portion to said second computer prior to completion of said download of said file from said third computer to said first computer.

46. A first computer having download resume capability and operative to, upon receiving an instruction from a second computer, said second computer having determined that a third computer from which a file may be downloaded lacks download resume capability, download said file from said third computer and transmit at least a portion of said file to said second computer.

47. A first computer having download resume capability and operative to, upon receiving an instruction from a second computer, said second computer having determined that a third computer from which a file may be downloaded lacks download resume capability, download said file from said third computer and transmit at least a portion of said file to said second computer prior to completion of said download of said file from said third computer to said first computer.

48. Apparatus for downloading files, the apparatus comprising:

means for determining that a first computer from which a file may be downloaded lacks download resume capability; and

means for downloading at least a portion of said file from a second computer in response to said determining.