High bandwidth broadcast system having localized multicast access to broadcast content

  • US 6,262,982 B1
  • Filed: 01/20/2000
  • Issued: 07/17/2001
  • Est. Priority Date: 11/12/1996
  • Status: Expired due to Term
First Claim
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1. A method of multicasting digital data to a plurality of separate users accessing an Internet connection at least in part via an Internet backbone, the method comprising the steps of:

  • a) formatting digital data in accordance with an IP protocol to generate IP digital data;

    b) stream transmitting, in a relatively time-sensitive manner, the IP digital data from a transmission site to a remote Internet point of presence through a transmission channel substantially separate from the Internet backbone;

    c) multicasting the IP digital data transmitted by step (b) from the remote Internet point of presence for delivery to a plurality of separate receiving Internet user apparatus connected to but distal from the remote Internet point of presence;

    d) contemporaneously with step c), transmitting, in a relatively time-insensitive manner, additional IP digital data separate from the transmission channel to the remote Internet point of presence and then to the plurality of separate receiving Internet user apparatus; and

    f) processing the multicasted IP digital data and the additional IP digital data on each among the plurality of separate receiving Internet user apparatus to simultaneously provide information from both the multicasted IP digital data and the additional IP digital data to each among the plurality of separate Internet users.

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