Internet protocol multicast with internet protocol unicast/multicast error correction

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United States of America Patent

PATENT NO 8261148
APP PUB NO 20100023828A1
SERIAL NO

12181077

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A method of delivering digital information includes joining a multicast group, and receiving a segment from a server directed to the multicast group. Further, the method further includes determining a transmission error has occurred resulting in an incomplete segment, and sending an error notification to the server requesting retransmission of at least a portion of the incomplete segment. Additionally, the method includes receiving a retransmission of the at least a portion of the incomplete segment. The at least a portion of the incomplete segment may be received through an IP unicast connection or as a multicast retransmission.

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Patent Owner(s)

  • AT&T CORP.;AT&T INTELLECTUAL PROPERTY II, L.P.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Blandford, Cameron S Newport News, US 2 14
Weinman, Joseph Basking Ridge, US 6 243

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