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System and method for modifying an information signal in a telecommunications system

  • US 6,049,824 A
  • Filed: 11/21/1997
  • Issued: 04/11/2000
  • Est. Priority Date: 11/21/1997
  • Status: Expired due to Term
First Claim
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1. A method for selectively modifying an information signal at a remote site in a telecommunications system having a head end and a number of remote sites connected to form a ring, the method comprising:

  • receiving, at the head end, an initiation signal that indicates when to start modifying the information signal;

    selectively retrieving at least one stored modification signal;

    transmitting the modification signal to at least one selected remote site over a packet ring network that supports Ethernet packets;

    switching the Ethernet packets off the packet ring network based on an identifier within the Ethernet packet at the selected remote site;

    modifying the information signal with the modification signal;

    detecting the end of the modification signal; and

    ending the modifying of the information signal.

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