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Connectionless protocol

  • US 7,013,346 B1
  • Filed: 10/06/2000
  • Issued: 03/14/2006
  • Est. Priority Date: 10/06/2000
  • Status: Active Grant
First Claim
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1. A method for real time transmission of frame-based content between a network server and a network client comprising the steps of:

  • designating individual packets of said content as either a frame packet that contains information for reconstructing an entire frame of said content or a differential packet that contains changes to a frame;

    assigning to each of said packets a sequence number and a timer for retransmission retention, wherein the duration of the timers for frame packets is longer than for differential packets;

    transmitting each of said packets to said network client;

    detecting an acknowledgment for one or more packets received at said network client;

    retransmitting any of said packets for which no acknowledgment is detected if their respective timers have not expired; and

    terminating the retention of each packet whose timer has expired, wherein differential packets are removed more frequently than frame packets in order to ensure that critical information is not lost when an acknowledgment is not detected.

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