Multiplex communications – Pathfinding or routing – Switching a message which includes an address header
Patent
1995-10-31
1997-10-28
Hsu, Alpus H.
Multiplex communications
Pathfinding or routing
Switching a message which includes an address header
370517, 375371, H04J 306, H04L 704
Patent
active
056823843
ABSTRACT:
In network applications that are distributed across more than two hosts in the network, a scheme capable of synchronizing and grouping packets into the so called fusion sets for playback is needed. Those packets arrive from different sources at a receiver, where they are "mixed" together for playback. The receiver can be one of the hosts/sources in the application, or a master host where packets from all the hosts arrive there first and subsequently are being forwarded back to all hosts. Basically, the apparatus and method operates as follows: the receiver accepts packets from other sources, and for each packet it computes its reference time (or expected arrival time). At the receiver, time is divided into reference intervals. Packets, one packet from each source, that their corresponding reference times are within the same reference interval at the receiver, they belong to the same fusion set for synchronization. In addition to reference times, the method/apparatus uses the so named zeta times which are constructed from the reference times by adding a constant time interval to the reference times of the same source, and this constant may or may not be the same for each source. The transmission of the packets is non-continuous periodic and the generation periods of the packets may be integer multiple to a fundamental period T. In addition, the use of feedback and of smaller reference intervals are shown to shorten the total delay time of the packets in the fusion set.
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Hsu Alpus H.
Zarros Panagiotis N.
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