A digital video signal processing device is capable of avoid phase difference of video signals in case of converting the rate of digital video signals. In case of converting the first digital video signal to the second digital video signal, the sync points of the first digital video signal and the second...http://www.google.ca/patents/US5285263?utm_source=gb-gplus-sharePatent US5285263 - Sample rate converter for digital video signals having reduced phase error and sync point coincidence
