发明授权
US08488064B2 DTV receiver and method of processing a broadcast signal in DTV receiver 有权
数字电视接收机和数字电视接收机处理广播信号的方法

DTV receiver and method of processing a broadcast signal in DTV receiver
摘要:
A DTV receiver includes a tuner, an information detector, a demodulator, and a channel equalizer. The tuner receives a broadcast signal including valid data in which a known data sequence is periodically repeated. The information detector detects location information of the known data sequence and a coarse frequency offset value of the broadcast signal. The demodulator demodulates the broadcast signal by estimating a fine frequency offset value using the detected location information and by compensating a frequency offset of the broadcast signal using the course and fine frequency offset values. Finally, the channel equalizer compensates channel distortion of the demodulated signal using the detected location information.
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