LINE INSERTING CIRCUIT OF A COLOR VIDEO PRINTER

摘要

The circuit includes an A/D converter for converting the received analog video data signals to digital video data by pixel unit and a colour ROM capable of storing data, for generating colour data for printing frame lines by an external selection. A counter set to a vertical count value serves as the vertical frame line inserting period, for counting column pixels and generating a first logic signal at the vertical count value. A second counter set to a horizontal count value serves as the horizontal frame line inserting period, for counting a row pixels and generating a first logic signal at the horizontal count value.