Collaborative development network for widely dispersed users and methods therefor

• US 7,043,529 B1
• Filed: 04/17/2000
• Issued: 05/09/2006
• Est. Priority Date: 04/23/1999
• Status: Active Grant

• 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: Simonoff, Adam J.
• Primary Examiner(s): Cardone, Jason
• Assistant Examiner(s): Pollack, Melvin H.
• Application Number:
  US09/551,364
• Time in Patent Office: 2,213 Days
• Field of Search: 709/204, 709/205, 709/219, 709/249, 709/250, 709/203, 434/350, 345/760
• US Class Current: 709/205
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]

Abstract

A White Board system permitting a plurality of users to collaborate with one another irrespective of the respective user'"'"'s hardware platform or operating system, includes a server computer, and a plurality of client computers coupled to the server computer. Preferably, each of the client computers logs into the server computer and is thereby assigned a unique identifier, each of the client computers includes a graphical user interface (GUI) which selectively displays any combination of objects having active content, active hyperlinks, and text, each of the client computers transmits user-generated objects to the server computer for selective retransmission to respective one of the client computers, the server selectively controls transmission of all user-generated objects to respective ones of the computers responsive to the respective assigned identifier, and the server commands one of the client computers to update a new client computer when the new client computer logs into the server. A method for operating a computer network to facilitate collaboration between users and software for implementing the method are also described.

Claims

1. A method performed by a whiteboard server for adding a new whiteboard client to an existing whiteboard session including a plurality of whiteboard clients where each of the whiteboard clients presents a plurality of whiteboard objects using a whiteboard, the method comprising:

detecting the new whiteboard client to be added to the existing whiteboard session;

determining which whiteboard client from the plurality of whiteboard clients in the existing whiteboard session that has been part of the whiteboard session for the longest period of time upon detection of the new whiteboard client;

receiving from the determined whiteboard client one or more objects presented by the whiteboard of the determined whiteboard client; and

transmitting the one or more received objects to the new whiteboard client for presentation by the whiteboard of the new whiteboard client.

2. The method of claim 1 further comprising determining a predetermined privilege level associated with each whiteboard client wherein determining the whiteboard client from the plurality of whiteboard clients includes determining the whiteboard client from the plurality of whiteboard clients that has been part of the whiteboard session the longest period of time and has the highest privilege level of the plurality of whiteboard clients relative to the new whiteboard client.

3. The method of claim 1 further comprising determining a privilege level of the new whiteboard client and determining a privilege level of each of the plurality of objects displayed by the determined whiteboard client wherein transmitting the received objects includes transmitting only received objects having a privilege level that is less than or equal to the determined privilege level of the new whiteboard client.

4. The method of claim 1 wherein transmitting the received objects includes receiving a command to stop transmitting the received objects.

5. The method of claim 1 further comprising excluding the new client from the existing whiteboard session.

6. The method of claim 1 wherein receiving one or more objects includes receiving one or more objects that are determined using a vector of the determined client including one or more wrapper objects corresponding to the objects presented by the whiteboard of the determined whiteboard client.

7. Software in a computer usable medium for adding a new whiteboard client to an existing whiteboard session including a plurality of whiteboard clients where each of the whiteboard clients presents a plurality of whiteboard objects using a whiteboard, the software including instructions to cause a processor of a whiteboard server to:

detect the new whiteboard client to be added to the existing whiteboard session;

determine which whiteboard client from the plurality of whiteboard clients in the existing session that has been part of the session for the longest period of time upon detection of the new whiteboard client;

receive from the determined whiteboard client one or more objects presented by the whiteboard of the determine whiteboard client; and

transmit the one or more received objects to the new whiteboard client for presentation by the whiteboard of the new whiteboard client.

8. The software of claim 7 further comprising instructions to determine a predetermined privilege level associated with the whiteboard clients wherein the instructions to determine the whiteboard client from the plurality of whiteboard clients includes instructions to determine the whiteboard client from the plurality of whiteboard clients that has been part of the whiteboard session the longest period of time and has the highest privilege level of the plurality of whiteboard clients relative to the new whiteboard client.

9. The software of claim 7 wherein the instructions to transmit include instructions to determine a privilege level of the new whiteboard client, to determine a privilege level of each of the plurality of objects displayed by the determined whiteboard client, and to transmit only received objects having a privilege level that is less than or equal to the determined privilege level of the new whiteboard client.

10. The software of claim 7 wherein the instructions to cause a processor to transmit the received objects includes instructions to stop transmitting the received objects.

11. The software of claim 7 further comprising instructions to cause a processor to exclude the new client from the existing whiteboard session.

12. The software of claim 7 wherein the instructions to receive one or more objects includes instructions to receive one or more objects that are determined using a vector of the determined client including one or more wrapper objects corresponding to the objects presented by the whiteboard of the determined whiteboard client.

13. A whiteboard server for adding a new whiteboard client to an existing whiteboard session including a plurality of whiteboard clients where each of the whiteboard clients presents a plurality of whiteboard objects using a whiteboard, the white board server configured to:

detect the new whiteboard client to be added to the existing whiteboard session;

determine which whiteboard client from the plurality of whiteboard clients in the existing whiteboard session that has been part of the whiteboard session for the longest period of time upon detection of the new whiteboard client;

receive from the determined whiteboard client one or more objects presented by the whiteboard of the determined whiteboard client; and

transmit the one or more received objects to the new whiteboard client for presentation by the whiteboard of the new whiteboard client.

14. The whiteboard server of claim 13 further configured to determine a predetermined privilege level associated with the whiteboard clients and to determine the whiteboard client from the plurality of whiteboard clients that has been part of the whiteboard session the longest period of time and has the highest privilege level of the plurality of whiteboard clients relative to the new whiteboard client.

15. The whiteboard sewer of claim 13 wherein the server is configured to determine a privilege level of the new whiteboard client, determine a privilege level of each of the plurality of objects displayed by the determined whiteboard client, and to transmit only received objects having a privilege level that is less than or equal to the determined privilege level of the new whiteboard client.

16. The whiteboard server of claim 13 wherein the server is configured to transmit he received objects includes receiving a command to stop transmitting the received objects.

17. The whiteboard server of claim 13 wherein the server is configured to exclude the new client from the existing whiteboard session.

18. The whiteboard server of claim 13 wherein the server is configured to receive one or more objects that are determined using a vector of the determined client including one or more wrapper objects corresponding to the objects presented by the whiteboard of the determined whiteboard client.

19. A collaborative system comprising:

a plurality of whiteboard clients in an existing whiteboard session;

a new whiteboard client to join the existing session; and

a whiteboard server configured to;

detect the new whiteboard client to join the existing whiteboard session;

determine which whiteboard client from the plurality of whiteboard clients in the existing whiteboard session that has been part of the whiteboard session for the longest period of time upon detection of the new whiteboard client;

receive from the determined whiteboard client one or more objects presented by the whiteboard of the determined whiteboard client; and

transmit the one or more received objects to the new whiteboard client for presentation by the whiteboard of the new whiteboard client.

20. The collaborative system of claim 19 wherein the server is configured to determine a predetermined privilege level associated with the whiteboard clients and to determine the whiteboard client from the plurality of whiteboard clients that has been part of the whiteboard session the longest period of time having the highest privilege level of the plurality of whiteboard clients relative to the new whiteboard client.

21. The collaborative system of claim 19 wherein the server is configured to determine a privilege level of the new whiteboard client, to determine a privilege level of each of the plurality of objects displayed by the determined whiteboard client, and to transmit only received objects having a privilege level that is less than or equal to the determined privilege level of the new whiteboard client.

22. The collaborative system of claim 19 wherein the server is configured to transmit he received objects includes receiving a command to stop transmitting the received objects.

23. The collaborative system of claim 19 wherein the server is configured to exclude the new client from the existing whiteboard session.

24. The collaborative system of claim 19 wherein the server is configured to receive one or more objects that are determined using a vector of the determined client including one or more wrapper objects corresponding to the objects presented by the whiteboard of the determined whiteboard client.