Patents by Inventor Ha-Kyun Mok

Ha-Kyun Mok has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method and apparatus for addition data transmission and reception in digital broadcast system
    Patent number: 8837553
    Abstract: 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.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: September 16, 2014
    Assignees: Electronics and Telecommunications Research Institute, Seoul, Republic of Korea, Nextwill Co., Ltd.
    Inventors: Sung Ik Park, Hyoungsoo Lim, Ho Min Eum, Jae Hyun Seo, Heung Mook Kim, Nam Ho Hur, Young Woo Suh, Jae Kwon Lee, Ha Kyun Mok, Won Gi Seo, Ju Byung Kim
  • Distributed translator with received signal synchronization and method thereof
    Patent number: 8170144
    Abstract: A distributed translator and an operation method of the distributed translator are proposed. The distributed translator includes: a demodulator demodulating a received signal to extract a transport stream and synchronization information from the received signal; a modulator generating an output frame based on the synchronization information to modulate the output frame; and a transmitter transmitting the modulated output frame according to a transmission timing.
    Type: Grant
    Filed: October 28, 2008
    Date of Patent: May 1, 2012
    Assignee: Korean Broadcasting System
    Inventors: Young-Woo Suh, Tae-Hoon Kwon, Ha-Kyun Mok, Jong Soo Seo, Jin Yong Choi
  • DISTRIBUTED TRANSLATOR WITH RECEIVED SIGNAL SYNCHRONIZATION AND METHOD THEREOF
    Publication number: 20090110133
    Abstract: A distributed translator and an operation method of the distributed translator are proposed. The distributed translator includes: a demodulator demodulating a received signal to extract a transport stream and synchronization information from the received signal; a modulator generating an output frame based on the synchronization information to modulate the output frame; and a transmitter transmitting the modulated output frame according to a transmission timing.
    Type: Application
    Filed: October 28, 2008
    Publication date: April 30, 2009
    Applicant: KOREAN BROADCASTING SYSTEM
    Inventors: Young-Woo Suh, Tae-Hoon Kwon, Ha-Kyun Mok, Jong Soo Seo, Jin Yong Choi