Electronics and Telecommunications Research Institute

Nextwill Co., Ltd.

Seoul, Republic of Korea

Ha Kyun Mok

Nam Ho Hur

Heung Mook Kim

Sung Ik Park

Hyoungsoo Lim

Ho Min Eum

Jae Hyun Seo

Young Woo Suh

Won Gi Seo

Jae Kwon Lee

Ju Byung Kim

Provided are an apparatus for addition data transmission includes: an IF broadcasting signal generating unit receiving the broadcast data, and FEC and modulation of the received broadcast data to generate a broadcasting signal in an intermediate frequency (IF) band; an IF addition signal generating unit receiving the addition data to generate an addition signal in the IF band by using direct sequence spread spectrum (DSSS); an average power controlling unit controlling average power of the addition signal in the IF band; a signal combining unit combining the broadcasting signal in the IF band and the addition signal in the IF band to generate a combination signal; an RF upward converting unit upwardly converting the combination signal in a signal in a radio frequency (RF) band to a combination signal in the RF band; and a transmitting unit transmitting the combination signal in the RF band.

Method and apparatus for addition data transmission and reception in digital broadcast system

Growing community of inventors

Seoul, South Korea

Ha Kyun Mok