Patent ID: 7324742

Claim:
A video signal processing apparatus for processing a video signal contained in an input signal and outputting a processed signal to a display unit having a control means, and a double-speed conversion means, said apparatus comprising: separating means for separating from said input signal, a data signal representative of a character or a figure, and a reduced size signal representative of reduced size information; first determining means for determining whether the input signal contains said data signal according to a presence of the reduced size information signal; second determining means for determining whether a format associated with said video signal is a standard interlace format; converting means for converting the format of the video signal to a progressive format in the case that the first determining means determines that the input signal contains the data signal and the second determining means determines that the format associated with the video signal is the standard interlace format, said converting means for outputting the input signal without converting the format in the case that the input signal does not contain the data signal; and synthesizing means for synthesizing the video signal format-converted by the converting means with a video signal based on a corresponding data signal; wherein said control means of said display unit controls to input a synthesized signal from said synthesizing means to said double-speed conversion means in the case when the input signal does not contain the data signal and to pass through said double-speed conversion means in the case when the input signal contains the data signal.