APPARATUS AND METHOD FOR TRANSMITTING AND RECEIVING ADDITIONAL DATA USING TIME-DELAY INFORMATION OF SEQUENCE IN DIGITAL BROADCASTING SYSTEM

摘要

An apparatus for transmitting a main broadcasting signal and additional data in a digital broadcasting system includes: an orthogonal sequence generation unit configured to generate an orthogonal sequence having orthogonality with the main broadcasting signal; an orthogonal sequence delay unit configured to delay the generated orthogonal sequence according to inputted additional data; a signal mixing unit configured to mix the delayed orthogonal sequence with the main broadcasting signal and generate a mixed signal; and a transmission unit configured to transmit the mixed signal.