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Broadcast delivery of information to a personal computer for local storage and access

  • US 6,546,488 B2
  • Filed: 09/21/1998
  • Issued: 04/08/2003
  • Est. Priority Date: 09/22/1997
  • Status: Expired due to Term
First Claim
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1. An apparatus comprising:

  • a sending unit that is configured to send a newsgroup article using NNTP via an IP multicast network, wherein prior to sending the newsgroup article, said sending unit sends via the IP multicast network a message comprising (a) a multicast address to which the newsgroup article is to be addressed and (b) information related to information identifying a newsgroup to which the newsgroup article has been posted, the related information being used by a receiving apparatus in conjunction with newsgroup subscription information stored by the receiving apparatus to determine whether or not to open the multicast address to receive the newsgroup article, wherein the information identifying the newsgroup is the name of the newsgroup, and wherein the related information is determined by said sending unit by passing the name of the newsgroup through a hash function.

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