INPUT SIGNAL PROCESSING DEVICE OF DIGITAL TV, ESPECIALLY IN RELATION TO RECEIVING BOTH ANALOG VIDEO SIGNAL AND DIGITAL VIDEO SIGNAL

摘要

Purpose: an input signal processing equipment of a DTV, which is arranged to enable an image processor, suitably handles digitized simulation NTSC signal none mistake, and the exact image for being accordingly used in an anolog TV signals or a Digital TV signal can export on a monitor. Construction: the analog NTSC signal of an input or DTV (Digital TV) signal are converted to a digital signal by an A/D converter (401). One compensator (402) compensates the black area signal value of a blank value and the digitized NTSC signal exported from A/D converter (401). One image processor (403) suitably handles digital signal output end from compensator (402) according to a display, and process digital signal is exported on a monitor.