Video signal reproduction on monitor screen - involves determining digital value for each line point, and its brightness is controlled accordingly

摘要

A line and/or column of a line raaster on the monitor screen corresponding to the signal weighting, is allocated to the signal each digital value, as in 2655133. A certain digital value is determined for a line period for a vertical frequency representation of the digital video signal as an analogue voltage-time diagram. Depending on the digital value so obtained, brightness of a picture point in a line is controlled relative to other points on the respective line.