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Emergency alert signaling method and digital television receiver

  • US 20070107009A1
  • Filed: 11/09/2006
  • Published: 05/10/2007
  • Est. Priority Date: 11/09/2005
  • Status: Active Grant
First Claim
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1. An emergency alert signaling method for use by a terrestrial digital television (DTV) receiver, the method comprising:

  • receiving a digital television signal including a direct channel change table (DCCT) from a broadcast transmitter;

    parsing channel ID information and a priority code from the DCCT, wherein the channel ID information specifies an emergency alert channel associated with an emergency alert event and the priority code specifies an alert priority of the emergency alert event; and

    automatically tuning to the emergency alert channel based upon the alert priority.

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