Multicasting method and apparatus

DC CAFC
  • US 5,778,187 A
  • Filed: 05/09/1996
  • Issued: 07/07/1998
  • Est. Priority Date: 05/09/1996
  • Status: Expired due to Term
First Claim
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1. A method for transmitting message packets over a communications network comprising the steps of:

  • converting a plurality of streams of audio and/or visual information into a plurality of streams of addressed digital packets complying with the specifications of a network communication protocol,for each stream, routing such stream to one or more users,controlling the routing of the stream of packets in response to selection signals received from the users, andmonitoring the reception of packets by the users and accumulating records that indicate which streams of packets were received by which users, wherein at least one stream of Rackets comprises an audio and/or visual selection and the records that are accumulated indicate the time that a user starts receiving the audio and/or visual selection and the time that the user stops receiving the audio and/or visual selection.

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