Video signal compression apparatus for horizontal compression of a video signal

DETAILED DESCRIPTION A video signal compression apparatus in accordance with a first exemplary embodiment of the present invention takes out and uses a specific value written in a ROM (read only memory) at every system clock signal.
The specific value can be varied at every system clock.
Therefore, for example, only the center part of the image can be horizontally compressed.
A video signal compression apparatus in accordance with a second exemplary embodiment of the present invention uses a FIFO (first in, fist out) memory which does not need to generate addresses.
Therefore, the circuit scale can be made small.
A video signal compression apparatus in accordance with a third exemplary embodiment of the present invention can select a mode with a constant compression value or a mode to vary a compressed value at every system clock pulse.
Further, the constant compression value can be set from the outside.
A video signal compression apparatus in accordance with a fourth exemplary embodiment of the present invention can vary a display position of the picture.