Control unit operations in a real-time collaboration server

Details Control unit operations in a real-time collaboration server Control unit operations in a real-time collaboration server

2007-05-15

2007-05-15

Tran, Philip (Department: 2155)

Electrical computers and digital processing systems: multicomput

Computer conferencing

C709S223000, C709S231000, C710S052000, C710S054000

Reexamination Certificate

active

10387984

ABSTRACT:
In a real-time collaboration server, a control unit manages a collaboration mode. The control unit operates a virtual client that maintains a virtual screen reflecting the status of the collaboration (e.g., the contents of a shared desktop or whiteboard). The virtual client renders collaboration data within the virtual screen. New clients are synchronized with an ongoing collaboration by packing and sending them a copy of the virtual screen. The control unit maintains a queue of collaboration data to be sent to participating clients. Each client may have a pointer identifying the queued data it is processing. The queue may be collapsed (e.g., when it reaches a maximum size) by sending a copy of the virtual screen to one or more clients that have not yet consumed old data in the queue; those clients are then updated to skip the queue entries embodied in the virtual screen.

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