×

Added information insertion apparatus and method in broadcasting system

  • US 8,675,691 B2
  • Filed: 10/29/2009
  • Issued: 03/18/2014
  • Est. Priority Date: 11/26/2008
  • Status: Expired due to Fees
First Claim
Patent Images

1. An additional information insertion apparatus for a broadcasting system, comprising:

  • a broadcasting signal transmitter configured to transmit a broadcasting signal;

    a data extractor configured to extract a modulated signal by dividing the modulated signal from a modulator of the broadcasting signal transmitter;

    an additional data generator configured to extract synchronization of the broadcasting signal from the extracted broadcasting signal, generate additional data, modulate the additional data based on the extracted synchronization, and generate a level of the modulated additional data to be a smaller level than a signal level of the modulated signal as much as a predetermined value; and

    a data synthesizer configured to insert the additional data from the data generator into the modulated broadcasting signal.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×