| 摘要 |
Method of dynamic adjusting the sync window of present invention including setting a default sync window; inputting a data signal once in a time; detecting if parts of the data signal within the sync window is a sync pattern; accumulating times of the sync pattern within and without the sync window; and reducing the sync window when times of sync pattern within the sync window achieving one threshold value, and increasing the sync window when times of sync pattern outside the sync window achieves another threshold value. Apparatus of dynamic adjusting the sync window of present invention including: a buffer, storing an input data: a sync window generator, generating a sync window: a sync pattern detection circuit, detecting if the input data have any sync pattern showing in the sync window; a first counter, accumulating times of sync pattern found within the sync window; a second counter, accumulating times of sync pattern found outside the sync window; and an adjusting circuit, adjusting range of the sync window when the accumulative values of the first or the second counter achieves to a threshold.
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