Virtual channel table for a broadcast protocol and method of broadcasting and receiving broadcast signals using the same

  • US 7,814,530 B2
  • Filed: 11/04/2009
  • Issued: 10/12/2010
  • Est. Priority Date: 10/08/1999
  • Status: Expired due to Term
First Claim
Patent Images

1. A method of indicating an inactive channel in a digital broadcast transmitter, comprising:

  • generating a virtual channel table, in which a program number field is set to zero to indicate that a corresponding virtual channel is an inactive channel; and

    transmitting the virtual channel table as part of a digital broadcast signal,wherein said inactive channel is a channel that is not presently carrying a broadcast program;

    however, the same inactive channel is scheduled to carry a broadcast program at a predetermined later time from a broadcasting station without local viewer interaction; and

    wherein the inactive channel is capable of being automatically skipped.

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