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|United States Patent||5,109,384|
|Tseung||April 28, 1992|
This system guarantees reliable data transmission for one-to-one, one-to-many and/or many-to-many communications among data processing stations over a communications network. A general solution is presented, and a new concept (the arbitrator node) is discussed in detail. Special logical nodes and a new communications protocol are used so that a message is guaranteed to be received if a receiver(s) wants to receive the message even though a receiver(s) may be busy, slow or temporarily powered off. An optional management station controls orderly start and stop of group communications or conferences, and may also handle secure, confidential communications. This guaranteed, reliable, one-to-one, one-to-many or many-to-many system can be applied to overcome previously unsolved problems.
|Inventors:||Tseung; Lawrence C. N. (Acton, MA)|
|Filed:||February 27, 1990|
|Application Number||Filing Date||Patent Number||Issue Date|
|266473||Nov., 1988||5036518||Jul., 1991|
|Oct 31, 1989 [CA]||2001939|
|Current U.S. Class:||714/748 ; 340/2.26; 714/4|
|Current International Class:||H04L 1/12 (20060101); H04L 1/16 (20060101); H04L 1/18 (20060101); H04L 1/00 (20060101); H04L 29/06 (20060101); H04L 12/18 (20060101); H04B 017/00 (); G08C 025/04 ()|
|Field of Search:||371/32,33,67.1,68.1,68.2 340/825.06,825.15 364/222.2,240.8,240.9,242.6,242.94,242.5|
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