PURPOSE: To enable the picture data transmitter handling only a picture data of a natural picture to display a character or a hand-written drawing picture.
CONSTITUTION: A frame memory 229 has a character plane in which a character data or a hand-written drawing picture data [Y,B,G,R] is written and a natural picture plane in which a picture data of a natural picture [B,G,R] is written. Thus, the transmitter processes not only a natural picture but also a character or a hand-written drawing picture data. When the character or the hand-written drawing picture data is sent to the picture data transmitter processing only the picture data of the natural picture, after the picture data of the character plane is transferred to the natural picture plane, the picture data of the natural picture is sent. The character or the hand-written drawing picture data is processed as the picture data of the natural picture and the picture of the character or the handwritten drawing picture data is displayed on the picture data transmitter handling only the picture data of the natural picture without addition of the hardware and the software, that is, without loss of merits such as portable performance, economy and low power consumption.
KITAMURA YOSHIO
TAWARA TOMONORI
KOYANAGI HIDEKI
