Method and apparatus for supporting multipoint communications in

Details Method and apparatus for supporting multipoint communications in Method and apparatus for supporting multipoint communications in

1996-03-29

1998-11-24

Lall, Parshotam S.

Multiplex communications

Wide area network

Packet switching

39520055, 39520057, 370260, 370261, 370262, G06F 1100

Patent

active

058419764

ABSTRACT:
A method and apparatus for enabling a computer system to initiate, conduct, and terminate a multipoint computer conference regardless of the underlying network protocols. The computer system executes software which determines whether the network supports rooted control and rooted data. When the network supports rooted control, the computer system waits for a connect signal sent from a control leaf node of a plurality of control leaf nodes when the computer system is a control root node and the computer system is to wait for the connect signal. The receipt by the control root node of the connect signal causes the control leaf node to join the conference. The computer system sends the connect signal to the control leaf node when the computer system is the control root node and the computer system is not to wait for the connect signal. The receipt by the control leaf node of the connect signal causes the control leaf node to join the conference. The connect signal is sent from the control root node and from the control leaf node using a function call with arguments identifying the control leaf node and the control root node.

REFERENCES:
patent: 5195086 (1993-03-01), Baumgartner et al.
patent: 5557725 (1996-09-01), Ansberry et al.
patent: 5581702 (1996-12-01), McArdie et al.
patent: 5619555 (1997-04-01), Fenton et al.
patent: 5627978 (1997-05-01), Altom et al.
"Windows Sockets 2 Application Programming Interface", An Interface for Transparent Network Programming Under Microsoft Windows.TM., Revision 2.2.0, May 10, 1996.

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