DEVICE AND METHOD FOR PROCESSING IMAGE SIGNAL

摘要

PURPOSE: To convert the interlace type image signal to the non-interlace type signal with the simple structure, and to perform the thinning out of image signal. CONSTITUTION: The number (5) corresponding to the horizontal scanning line obtained by thinning out the predetermined number of horizontal scanning line per each preset number, which is previously set on the basis of the total horizontal scanning lines of PAL signal and the total horizontal scanning lines of NTSC signal, of line memories L1-L5 are provided. A de-multiplexer 12 selects the memories L1-L5 so that each PAL signal corresponding to each horizontal scanning line of the first - the fifth among six horizontal scanning lines is stored. A selector 14 reads out the memories L1-L5 in order twice during the time from the time of storing the PAL signal corresponding to the first horizontal scanning line to the time of storing the PAL signal corresponding to the seventh horizontal scanning line.