Operating methods for a universal client device permittting a computer to receive and display information from several special applications simultaneously

• US 5,944,784 A
• Filed: 09/30/1997
• Issued: 08/31/1999
• Est. Priority Date: 09/30/1997
• Status: Expired due to Fees

• Current Assignee: the united states of america as represented by the secretary of the navy
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Fontenot, Larry A., Simonoff, Adam J., Taft, Robert L., McLintock, Brian T.
• Primary Examiner(s): Asta, Frank J.
• Assistant Examiner(s): YUAN, ALMARI ROMERO
• Application Number:
  US08/941,544
• Time in Patent Office: 700 Days
• Field of Search: 395/200.32, 395/200.33, 395/200.38, 395/200.39, 395/200.47, 395/200.48
• US Class Current: 709/203
• CPC Class Codes: G06F 9/542 Event management; Broadcasting; Multicasting; Notifications
• CPC Class Codes: G06F 9/545 where tasks reside in different layers, e.g. user- and kernel-space

Abstract

A Universal Client with a self-contained scripting language called GUIScript allows computing systems of varying architectures linked to the Internet or connected by an Intranet to run the same application software without modification or recompilation. Using a client-server architecture, the Universal Client receives GUIScript from the server, which commands the Universal Client to display certain graphical user interface (GUI) objects. The GUIScript also describes the behavior of the GUI objects presented by the Universal Client, thus providing a personality which defines the client application without changing the Universal Client'"'"'s software. The Universal Client can also send GUIScript to the server to cause the server to execute commands. A method of operating the computer system using the Universal Client and GUIScript is described.

Claims

1. A method for operating a computer system having first through third computers interconnected to one another by a communications channel, said method comprising steps for:

(a) storing a document written in hypertext markup language (HTML), said HTML document including an applet tag for invoking a Universal Client device and computer readable first instructions for generating said Universal Client device, on the first computer;

(b) transmitting said HTML document and said first instructions for generating said Universal Client device from the first computer to the second computer via the communications channel;

(c) storing computer readable second instructions for permitting the second computer to utilize a World Wide Web browser providing a JAVA™

virtual machine;

(d) initializing and executing said Universal Client device on said second computer using said JAVA™

virtual machine to thereby generate predetermined graphical user interface (GUI) objects and display said GUI objects on said second computer;

(e) storing computer readable third instructions on the third computer for controlling the third computer during generation of a character string;

(f) processing said third instructions to thereby generate said string;

(g) transmitting said string to said second computer; and

(h) modifying at least one of said GUI objects displayed on the second computer responsive to said string.

2. The operating method for the computer system as recited in claim 1, wherein:

said method further comprises the step for;

(I) storing a script defining one of said predetermined GUI objects on said second computer; and

said Universal Client device generates said one of said predetermined GUI objects responsive to said script during said step (d).

3. The operating method for the computer system as recited in claim 1, wherein:

said method further comprises the step for;

(j) storing a script defining at least one of said predetermined GUI objects on said first computer; and

said Universal Client device generates said predetermined GUI objects responsive to said script during said step (d).

4. The operating method for the computer system as recited in claim 1, wherein said first instructions include commands to said Universal Client device to establish a predetermined connection between said second computer and said third computer, said predetermined connection being defined in said first instructions.

5. The operating method for the computer system as recited in claim 1, wherein:

said HTML document includes a parameter statement which commands said Universal Client device to establish a predetermined connection between said second computer and said third computer, said predetermined connection being defined in said parameter statement; and

said Universal Client device modifies said predetermined GUI objects responsive to said string during said step (h).

6. The operating method for the computer system as recited in claim 5, wherein:

said string comprises a GUIScript message; and

during said step (h), said Universal Client device running on said second computer selectively modifies and replaces said predetermined GUI objects responsive to an incoming GUIScript message corresponding to changing parameters associated with said third computer.

7. The operating method for the computer system as recited in claim 5, wherein:

said string comprises a datagram; and

during said step (h), said Universal Client device running on said second computer selectively modifies and replaces said predetermined GUI objects responsive to an incoming datagram corresponding to changing parameters associated with said third computer.

8. The operating method for the computer system as recited in claim 5, wherein said third computer comprises N third computers, where N is an integer greater than 1, and wherein said method comprises:

(e) storing N sets of computer readable third instructions on each of N third computers for controlling said N third computers during generation of N character strings, respectively; and

(f) processing said N sets of third instructions to thereby generate said N character strings;

(g) transmitting said N character strings to said second computer; and

(h) modifying said GUI objects displayed on the second computer responsive to said N character strings.

9. The operating method for the computer system as recited in claim 1, wherein said third computer comprises N third computers, where N is an integer greater than 1, and wherein said method comprises:

(e) storing N sets of computer readable third instructions on each of N third computers for s controlling said N third computers during generation of N character strings, respectively; and

(f) processing said N sets of third instructions to thereby generate said N character strings;

(g) transmitting said N character strings to said second computer; and

(h) modifying said GUI objects displayed on the second computer responsive to said N character strings.

10. The operating method for the computer system as recited in claim 1, wherein one of said predetermined GUI objects comprises a MultiMedia presentation.

11. The operating method for the computer system as recited in claim 1, wherein one of said predetermined GUI objects comprises a duration timer.

12. An operating method for a computer system having first, second and third computers generating a graphical user interface (GUI) on the first computer screen corresponding to a presentation generated with respect to the second computer screen irrespective of the operating system differences between the respective first, second and third computers, comprising steps for:

providing a hypertext markup language (HTML) document including an applet tag corresponding to a Universal Client device from the third computer to the first computer;

initializing and executing the Universal Client device using a JAVA™

virtual machine associated with the first computer;

for parsing and interpreting a script associated with the Universal Client device to thereby cause the Universal Client device to display the GUI;

parsing and interpreting the script associated with the Universal Client device to thereby cause the Universal Client device to establish a predetermined connection between the first and the second computers; and

generating a string causing changes in the GUI displayed by the Universal Client device on the first computer.

13. The operating method for the computer system as recited in claim 12, wherein said predetermined connection comprises a Transmission Control Protocol/Internet Protocol (TCP/IP) connection.

14. The operating method for the computer system as recited in claim 12, wherein said GUI includes a plurality of GUI objects.

15. The operating method for the computer system as recited in claim 14, wherein one of said GUI objects comprises a MultiMedia object.

16. The operating method for the computer system as recited in claim 14, wherein one of said GUI objects comprises a performance assessment object.

17. The operating method for the computer system as recited in claim 12, wherein said string comprises an ASCII character string.

18. The operating method for the computer system as recited in claim 12, wherein said string comprises a datagram.

19. The computer system as recited in claim 12, wherein said string comprises a GUIScript message.

20. An operating method for a computer system generating a representative graphical user interface (GUI) on a first computer screen corresponding to a presentation generated with respect to a second computer screen irrespective of the operating system differences between the respective first and second computers and a third computer, comprising steps for:

providing a hypertext markup language (HTML) document including an applet tag corresponding to a Universal Client device and a first script defining a first GUI;

initializing and executing the Universal Client device responsive to said first script using a JAVA™

virtual machine;

parsing and interpreting said first script to thereby cause the Universal Client device to display the first GUI;

parsing and interpreting the first script to thereby cause the Universal Client device to establish a predetermined connection between the first and the third computers and to generate a second script permitting the Universal Client device to control said second computer;

parsing and interpreting said second script, for generating a first instruction to which said second computer responds;

receiving said first instruction for generating a second instruction representing the presentation displayed on the second computer screen;

receiving said second instruction for generating a third script; and

receiving said third script for causing said Universal Client device to replace said first GUI with said representative GUI on said first computer screen.

21. The operating method for the computer system as recited in claim 20, wherein said predetermined connection comprises a Transmission Control Protocol/Internet Protocol (TCP/IP) connection.

22. The operating method for the computer system as recited in claim 20, wherein each of said first GUI and said representative GUI includes a plurality of GUI objects.

23. The operating method for the computer system as recited in claim 22, wherein one of said GUI objects comprises a MultiMedia object.

24. The operating method for the computer system as recited in claim 22, wherein one of said GUI objects comprises a performance assessment object.

25. A method for operating a computer system generating a representative graphical user interface (GUI) on a first computer screen corresponding to a presentation generated with respect to a second computer screen irrespective of the operating system differences between the respective first and second computers and a third computer, the method comprising steps for:

providing a hypertext markup language (HTML) document including an applet tag corresponding to a Universal Client device and a first script defining a first GUI;

initializing and executing the Universal Client device responsive to said first script using a JAVA™

virtual machine;

parsing and interpreting said first script to thereby cause the Universal Client device to display the first GUI;

parsing and interpreting the first script to thereby cause the Universal Client device to establish a predetermined connection between the first and the third computers and to generate a second script permitting the Universal Client device to control said second computer;

parsing and interpreting said second script, for generating a first instruction to which said second computer responds;

generating a second instruction representing the presentation displayed on the second computer screen responsive to said first instruction;

generating a third script responsive to said second instruction; and

causing said Universal Client device to replace said first GUI with said representative GUI on said first computer screen responsive to said third script.

26. The method as recited in claim 25, wherein said predetermined connection comprises a Transmission Control Protocol/Internet Protocol (TCP/IP) connection.

27. The method as recited in claim 25, wherein each of said first GUI and said representative GUI includes a plurality of GUI objects.

28. The method as recited in claim 27, wherein one of said GUI objects comprises a MultiMedia object.

29. The method as recited in claim 27, wherein one of said GUI objects comprises a performance assessment object.