It is desired to provide a technique capable of suppressing the production cost of a system in which a video signal is transmitted through a plurality of transmission paths. When a horizontal pixel number in a video signal is an integer from 0 to N-1, and a vertical line number in the video signal is an integer from 0 to M-1, the vertical line number is 2m. The operation of dividing the pixel group included in the line and the pixel group included in the line whose vertical line number is (2m + 1) based on the color format information of the video signal is 0 ≦ m ≦ (M / 2 ) -1 is performed on all integers m satisfying −1, and a frame generation unit is provided, and a frame generation unit that generates a plurality of frames separately including the plurality of division signals. Is provided. [Selection] Figure 1A
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