Patent ID: 8331763

Claim:
An apparatus for synchronizing a reproduction time of a time-shifted content with a reproduction time of a real-time content, the apparatus comprising: a tuner/demodulator which tunes broadcasting signals and demodulates the tuned broadcasting signals so as to output the broadcasting signals in the form of transport streams; a demultiplexer which demultiplexes the output transport streams so as to divide the transport streams into separate video data, audio data, and supplementary information, and outputs the video data, audio data, and supplementary information; a hard disk drive (HDD) which stores the video data, the audio data, and the supplementary information; and a data refining unit which removes: determines that a time-shift function of the apparatus is activated; when the time-shift function of the apparatus is activated, removes unnecessary frames from the video data and the audio data, as the time-shifted content, output by the demultiplexer, wherein the unnecessary frames are removed to reduce a time difference between the reproduction time of the time-shifted content and the reproduction time of the real-time content; and when the time-shift function of the apparatus is activated, synchronizes the video data with the audio data, from which the unnecessary frames are removed.