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Error correction system for packet switching networks

  • US 6,031,818 A
  • Filed: 03/19/1997
  • Issued: 02/29/2000
  • Est. Priority Date: 03/19/1997
  • Status: Expired due to Term
First Claim
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1. A data packet retransmission arrangement comprising:

  • at least one client unit associated with at least one destination;

    a source of data packets, said source transmitting the data packets to said at least one client unit using a real-time transport protocol, said data packets representing real-time audio or video, said client unit operable for receiving said data packets on behalf of said at least one destination; and

    at least one server unit operable to receive a copy of each said data packet that said source transmits to said client unit;

    said client unit being further operable, responsive to a received packet being indicative of an error, for sending to said server, rather than to said source, a request to retransmit that one of the data packets that said server received from said source that will correct said error;

    wherein said at least one client unit and said at least one server unit operate independently of said source and said at least one destination.

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