Apparatus for carrying out the process, and this method of obtaining the line synchronization information items from a video signal

摘要

Method for obtaining line synchronization information items from a video signal is proposed. The present invention is based to be convolution operation by the relevant part of the pattern function of the analog video signal line. Results of the convolution is further processed, the time-in Sutantsu the occurrence of the horizontal sync signal is detected. This time in Sutantsu will continue to filtering, and generates a horizontal pulse. The video line memories, it is possible to use a subsequent horizontal sync signals for calculating the horizontal sync pulses of the instantaneous video line. The present invention also relates to a device for carrying out the method.