DTV RECEIVING SYSTEM AND METHOD OF PROCESSING DTV SIGNAL
First Claim
1. A digital television (DTV) receiving system comprising:
- an information detector configured to detect a known data sequence periodically inserted in a digital television (DTV) signal;
a resampler configured to resample the DTV signala timing recovery unit configured to perform timing recovery on the DTV signal by detecting a timing error from the resampled DTV signal using the detected known data sequence; and
a carrier recovery unit configured to perform carrier recovery on the resampled DTV signal by estimating a frequency offset value of the resampled DTV signal using the detected known data sequence.
2 Assignments
0 Petitions
Accused Products
Abstract
A digital television (DTV) receiving system includes an information detector, a resampler, a timing recovery unit, and a carrier recovery unit. The information detector detects a known data sequence which is periodically inserted in a digital television (DTV) signal received from a DTV transmitting system. The resampler resamples the DTV signal at a predetermined resampling rate. The timing recovery unit performs timing recovery on the DTV signal by detecting a timing error from the resampled DTV signal using the detected known data sequence. The carrier recovery unit performs carrier recovery on the resampled DTV signal by estimating a frequency offset value of the resampled DTV signal using the detected known data sequence.
197 Citations
20 Claims
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1. A digital television (DTV) receiving system comprising:
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an information detector configured to detect a known data sequence periodically inserted in a digital television (DTV) signal; a resampler configured to resample the DTV signal a timing recovery unit configured to perform timing recovery on the DTV signal by detecting a timing error from the resampled DTV signal using the detected known data sequence; and a carrier recovery unit configured to perform carrier recovery on the resampled DTV signal by estimating a frequency offset value of the resampled DTV signal using the detected known data sequence. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of processing a digital television (DTV) signal in a DTV receiving system, the method comprising:
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detecting a known data sequence which is periodically inserted in a digital television (DTV) signal; resampling the DTV signal in a resampler; performing timing recovery on the DTV signal by detecting a timing error from the resampled DTV signal using the detected known data sequence; and performing carrier recovery on the resampled DTV signal by estimating a frequency offset value of the resampled DTV signal using the detected known data sequence. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification