An output of a conventional color-difference inter-field interpolating unit (10) and an output obtained by a color-difference 4:2:0 inter-field interpolating unit (11) and a color-difference intra-field line interpolating unit (12) as a progressive signal through inter-field interpolation by changing...http://www.google.es/patents/US8164687?utm_source=gb-gplus-sharePatente US8164687 - Color difference signal IP conversion method
