Universal electronic resource denotation, request and delivery system

• US 6,101,537 A
• Filed: 06/08/1998
• Issued: 08/08/2000
• Est. Priority Date: 11/07/1995
• Status: Expired due to Term

• Current Assignee: Franchise Capital Corporation (Aero Performance Products, Inc.)
• Original Assignee: Netword, Inc.
• Inventors: Rubin, Donald B., Bergman, Samuel, Edelstein, Matthew
• Primary Examiner(s): Maung, Zarni
• Application Number:
  US09/092,913
• Time in Patent Office: 792 Days
• Field of Search: 709/219, 709/225, 709/227, 709/226, 709/250
• US Class Current: 709/219
• CPC Class Codes: G06F 16/9566 URL specific, e.g. using aliases, detecting broken or misspelled links
• CPC Class Codes: H04L 61/30 Managing network names, e.g. use of aliases or nicknames name-to-address mapping H04L61/45
• CPC Class Codes: H04L 61/301 Name conversion
• CPC Class Codes: H04L 9/40 Network security protocols

Abstract

A universal electronic resource denotation, request and delivery system allows a user to locate information on a distributed computer system or network such as the Internet by knowing or guessing a short mnemonic alias of an electronic resource without the user having to know the physical or other location denotation such as the universal resource locator (URL) of the desired resource. The system hardware includes a client computer, a local server, a central registry server, a value added server, and a root server. The universal electronic resource denotation, request and delivery system supports a personal aliasing (nicknaming) feature, a universal resource accessing feature for finding location information such as URLs relating to a query term, a "see also" feature for including information about related documents or resources within the record of a resource, a feature for updating local servers and client machines by periodically deleting those records which have changed, a "try again" and "mirroring" feature for aiding a user in obtaining the resource under adverse hardware or software conditions, and an authentication and administration feature that allows a user to administer the aliases and related data which pertain to his/her resources.

Claims

1. An electronic resource denotation, request and delivery system, comprising:

a protocol through which electronic resources are each denoted by a resource alias unique throughout an interconnected network of two or more networks, each of said resource aliases comprising a string of characters forming a mnemonic independent of the physical location of, or path to said electronic resource, and not dependent on an identification of a naming authority governing the assignment of resource aliases for use on said interconnected network;

location data associated with each of said resource aliases;

a central registry accessible through said interconnected network for resolving said resource aliases into their respective associated location data; and

at least one computer accessible through said interconnected network for requesting a resolution of a particular resource alias.

2. The system of claim 1 further comprising a resource alias record for containing various data associated with an electronic resource denoted by a resource alias at least including said location data.

3. The system of claim 2, further comprising:

computer implemented software at said computer accessible through said interconnected network for forwarding a request for at least part of said data in a resource alias record to said central registry; and

computer implemented software at said central registry for returning said data to said computer accessible through said interconnected network, in response to said request.

4. The system of claim 3 wherein said computer accessible through said interconnected network is a local server.

5. The system of claim 4 further comprising:

at least one client computer, wherein said local server is also accessible to said client computer;

computer implemented software at said local server for receiving from said client computer said request using a resource alias and for returning to said client computer said data from said resource alias record.

6. The system of claim 5 wherein said local server includes cache memory for storing at least one resource alias and its associated resource alias record.

7. The system of claim 6 further comprising computer implemented software at said local server to retrieve said data from said cache of said local server, if available, in response to said received request from a client computer.

8. The system of claim 3 wherein said computer accessible through said interconnected network is a client computer.

9. The system of claim 8 wherein said part of said data includes an address for an electronic resource.

10. The system of claim 9 wherein said client computer further comprises cache memory for storing said data which includes an address for an electronic resource.

11. The system of claim 2, further comprising:

a root server for storing said resource aliases and their respective associated resource alias records;

computer implemented software at said computer accessible through said interconnected network for forwarding a request for at least part of said data in a resource alias record to said root server; and

computer implemented software at said root server for returning said data to said computer accessible through said interconnected network, in response to said request.

12. The system of claim 11 wherein said computer accessible through said interconnected network is a local server.

13. The system of claim 12 further comprising:

at least one client computer, wherein said local server is also accessible to said client computer;

computer implemented software at said local server for receiving from said client computer said request using a resource alias and for returning to said client computer said data from said resource alias record.

14. The system of claim 13 wherein said local server includes cache memory for storing at least one resource alias and its associated resource alias record.

15. The system of claim 14 further comprising computer implemented software at said local server to retrieve said data from said cache of said local server, if available, in response to said received request from a client computer.

16. The system of claim 11 wherein said computer accessible through said interconnected network is a client computer.

17. The system of claim 16 wherein said part of said data includes an address for an electronic resource.

18. The system of claim 17 wherein said client computer further comprises cache memory for storing said data which includes an address for an electronic resource.

19. The system of claim 1 further comprising computer implemented software for accessing a desired one of said electronic resources using said location data associated with said resource alias denoting said desired electronic resource.

20. The system of claim 19 further comprising computer implemented software for delivering said desired electronic resource to a user requesting said desired electronic resource using said resource alias denoting said desired electronic resource.

21. The system of claim 1 further comprising:

at least one client computer accessible through said interconnected network, said client computer including a cache memory for storing an alternative alias referred to as a nickname, for an associated resource alias, together with its resource alias; and

software implemented at said computer for resolving said nickname to said associated resource alias in response to a request for an electronic resource by said user using said nickname.

22. The system of claim 1 wherein each of said resource aliases are associated with a unique serial number.

23. The system of claim 1 further comprising computer implemented software at said central registry for updating said location data.

24. The system of claim 1 wherein said resource alias further comprises a source alias prepended to said string of characters forming a mnemonic, said source alias comprising a string of characters forming a mnemonic denoting a provider of said electronic resource.

25. The system of claim 24 further comprising a designated character separating said source alias from said character string following therefrom.

26. A method for denoting an electronic resource, comprising the steps of:

assigning a resource alias which is unique throughout an interconnected network of two or more networks to denote said electronic resource, said resource alias comprising a string of characters forming a mnemonic independent of the physical location of, or path to said electronic resource, and not dependent on an identification of a naming authority governing the assignment of resource aliases for use on said interconnected network;

associating location data with said resource alias;

maintaining said resource alias and its associated location data in a manner accessible through said interconnected network; and

providing at least one computer accessible through said interconnected network for requesting said location data.

27. The method of claim 26 further comprising the step of accessing a desired one of said electronic resources using said location data associated with said resource alias denoting said desired electronic resource.

28. The method of claim 27 further comprising the step of delivering said desired electronic resource to a user requesting said desired electronic resource using said resource alias denoting said desired electronic resource.

29. The method of claim 26 further comprising the steps of:

storing an alias of a resource alias, referred to as a nickname, together with said resource alias, in a cache memory located in a client computer accessible through said interconnected network; and

resolving said nickname to said resource alias at said computer accessible through said interconnected network, in response to a request for an electronic resource by said user using said nickname.

30. The method of claim 26, further comprising the steps of:

associating a data record known as a resource alias record, with said resource alias, said resource alias record comprising various data at least including said location data of said electronic resource, wherein said resource aliases and associated resource data records are maintained in a central registry;

forwarding from said computer accessible through said interconnected network to said central registry, a request for at least part of said data in a resource alias record; and

returning said data from said central registry to said computer accessible through said interconnected network, in response to said request.

31. The method of claim 30 wherein said computer accessible through said interconnected network is a local server and wherein said local server is accessible to a client computer, further comprising the steps of:

receiving at said local server a request from said client computer for an electronic resource using a corresponding resource alias; and

returning to said client computer from said local server, said data from said resource alias record for retrieving said electronic resource denoted by said resource alias.

32. The method of claim 31 further comprising the step of storing at least one resource alias and its associated resource alias record in a cache memory in said local server.

33. The method of claim 32, further comprising steps for maintaining current and correct resource alias records in said cache memory of said local server, comprising the steps of:

said local server periodically communicating with one of said central registry;

said local server sending to said central registry during said periodic communication a list of resource aliases in said cache memory and a date and time when each of said resource alias records was last updated;

said central registry replying to said local server with the identity of each of said resource aliases in said cache memory whose records are out of date;

said local server deleting from said cache memory each of said resource alias records which said central registry identified as out of date;

said local server requesting from said central registry an update to a resource alias record which a user indicates fails to retrieve the correct electronic resource;

said central registry replying to said local server with said updated resource alias record; and

said local sever updating said resource alias record in said cache memory from the data received from said central registry.

34. The method of claim 30 wherein said computer accessible through said interconnected network is a client computer and wherein said part of said data includes an address for an electronic resources denoted by said resource alias, further comprising the step of storing said returned data including said address for an electronic resource denoted by said resource alias in a cache memory in said client computer.

35. The method of claim 34, further comprising steps for maintaining current and correct resource alias records at a client computer, comprising the steps of:

said client computer periodically communicating with one of said local servers;

said client computer sending to said local server during said periodic communication a list of resource aliases in said cache memory of said client computer and a date and time when each of said resource alias records was last updated;

said local server replying to said client computer with the identity of each of said resource aliases in said cache memory of said client computer whose records are out of date;

said client computer deleting from its cache memory each of said resource alias records which said local server identified as out of date;

said client computer requesting from said local server an update to a resource alias record;

said local server replying to said client computer with said updated resource alias record; and

said client computer updating said resource alias record in said cache memory of said client computer from the data received from said local server.

36. The method of claim 26, further comprising the steps of:

associating a data record known as a resource alias record, with said resource alias, said resource alias record comprising various data at least including said location data of said electronic resource, wherein said resource aliases and associated resource data records are maintained in a central registry;

storing said resource aliases and their respective associated resource alias records in a root server database;

forwarding a request for at least part of said data in a resource alias record from said computer accessible through said interconnected network to a root server; and

returning said data from said root server database to said computer accessible through said interconnected network, in response to said request.

37. The method of claim 36 wherein said computer accessible through said interconnected network is a local server and wherein said local server is also accessible to a client computer, further comprising the steps of:

receiving at said local server, a request from said client computer for an electronic resource, said request using a corresponding resource alias; and

returning to said client computer said data from said resource alias record for retrieving said electronic resource denoted by said resource alias.

38. The method of claim 37 further comprising the step of storing in a cache memory in said local server, at least one resource alias and its associated resource alias record.

39. The method of claim 38 further comprising the step of retrieving from said local server said data from said cache memory of said local server, if available, which is responsive to said received request from said client computer.

40. The method of claims 38 further comprising steps for maintaining current and correct resource alias records in said cache memory of said local server, comprising the steps of:

said local server periodically communicating with one of said root servers;

said local server sending to said root server during said periodic communication a list of resource aliases in said cache memory and a date and time when each of said resource alias records was last updated;

said root server replying to said local server with the identity of each of said resource aliases in said cache memory whose records are out of date;

said local server deleting from said cache memory each of said resource alias records which said root server identified as out of date;

said local server requesting from said root server an update to a resource alias record which a user indicates fails to retrieve the correct electronic resource;

said root server replying to said local server with said updated resource alias record; and

said local sever updating said resource alias record in said cache memory from the data received from said root server.

41. The method of claim 36 wherein said computer accessible through said interconnected network is a client computer and wherein said part of said data includes an address for an electronic resource denoted by said resource alias, further comprising the step of storing said returned data including said address for an electronic resource denoted by said resource alias, in a cache memory in said client computer.

42. The method of claim 36, further comprising steps for maintaining current and correct resource alias records at said root server database, comprising the steps of:

said root server periodically communicating with said central registry;

receiving data from said central registry, said data including new resource aliases and new and updated resource alias records of existing resource alias records; and

updating said root server database with said received data from said central registry.