An image data display apparatus includes a terminal display unit, an NTSC display unit, and a frame memory having a first port and a second port, for storing an image data. A display timing control unit generates a terminal display timing signal and an NTSC display timing signal. A frame memory control...http://www.google.com/patents/US6529205?utm_source=gb-gplus-sharePatent US6529205 - Image data display apparatus in which image data are displayed on terminal display unit and NTSC system display unit
