| 摘要 |
A source format detector for detecting a format of a video signal includes a frequency data generator for generating first frequency data corresponding to a first field in the video signal, and second frequency data corresponding to a second field in the video signal; a transform domain comparator for comparing the first frequency data with the second frequency data to thereby obtain a comparison result; and a detector for detecting the format of the video signal according to comparison results for a plurality of first and second fields.
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