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Apparatus, systems and methods for producing coherent symbols in a single frequency network

  • US 7,738,582 B2
  • Filed: 02/28/2006
  • Issued: 06/15/2010
  • Est. Priority Date: 03/02/2005
  • Status: Active Grant
First Claim
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1. A method for producing a plurality of coherent symbols from a plurality of digital RF transmitters having a plurality of Trellis coders, comprising the steps of:

  • receiving a digital signal containing content data to be broadcast from the plurality of digital RF transmitters;

    inserting an initialization packet into the digital signal, the initialization packet containing a plurality of stuff bytes positioned in predetermined byte positions, respectively, setting each one of the plurality of Trellis coders to a predetermined state as a corresponding stuff byte enters; and

    transmitting the digital signal containing the initialization packet to the plurality of digital RF transmitters.

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