In an arrangement for converting an original picture signal representing a sequence of frames, each of which is composed of two interlaced fields, into a converted picture signal which has a double field frequency with respect to the original picture signal, is for doubling the field frequency, for the...http://www.google.es/patents/US5469217?utm_source=gb-gplus-sharePatente US5469217 - Arrangement for doubling the field frequency of a picture signal
Arrangement for doubling the field frequency of a picture signal
