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System and method for highly scalable video on demand

  • US 7,107,606 B2
  • Filed: 08/30/2001
  • Issued: 09/12/2006
  • Est. Priority Date: 08/30/2000
  • Status: Active Grant
First Claim
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1. A method for providing sequential data blocks each having a duration, comprising:

  • providing repeating pre-scheduled multicasts of a data block;

    dynamically initiating a transmission of the front portion of the data block in response to a user request to receive the data block from a user so as to serve the user outside the pre-scheduled multicasts of the data block as a dynamically admitted user;

    merging the dynamically admitted user into one of the pre-scheduled multicasts of the data block;

    wherein the dynamically initiated transmission is a multicast transmission that is sent to and is shared by a plurality of dynamically admitted users for the data block who are admitted in time to catch the beginning of the dynamically initiated multicast transmission.

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