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System and method for receiving packet data multicast in sequential looping fashion

  • US 20010034788A1
  • Filed: 01/22/2001
  • Published: 10/25/2001
  • Est. Priority Date: 01/21/2000
  • Status: Abandoned Application
First Claim
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1. A computer implemented method for receiving content data transmitted from a server in a sequence of packets, the server repeatedly transmitting the packets in sequence, the method comprising:

  • upon receipt of a first packet from the server, deriving from the packet a number of the packet in the sequence and a total number of packets in the sequence;

    generating and storing an index having an entry for each of the packets in the sequence based upon the total number of packets in the sequence;

    updating the index for each packet received subsequent to the first packet;

    detecting based on the index whether any subsequent packet is missing from the sequence of packets; and

    if a missing packet is detected, determining whether the first time required to retrieve the missing packet by waiting for the packet to be received in the repeating sequence is greater than a threshold time and, if the first time is greater than the threshold time, requesting the missing packet to be delivered from a server.

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