Patent ID: 7411903
Filing Date: 2008-08-12
Classification: H04L

Abstract:
1. A selective retransmission method, comprising: (a) transmitting packets of an MPEG-2 frame in real-time, the packets of the MPEG-2 frame including one or more I-frame packets and one or more non I-frame packets; (b) checking for any transmission error in the transmitted one or more I-frame packets-and determining a number of non-received I-frame packets resulting from a transmission error; and (c) if any transmission error is generated, prior to transmission of subsequent packets of a subsequent MPEG-2 frame including one or more subsequent I-frame packets and one or more subsequent non I-frame packets, discarding a number of the subsequent non I-frame packets equal to the number of non-received I-frame packets resulting from the transmission error, and retransmitting the non-received I-frame packets as part of the subsequent packets of the subsequent MPEG-2 frame in place of the discarded subsequent non I-frame packets.