METHOD OF TRANSMITTING AND RECEIVING HAND-WRITTEN IMAGE AND APPARATUS FOR COMMUNICATION IN WRITING

摘要

The XY axis of the touch panel 14 superimposed on the LCD 12 is read at 15 msec, and the current dot position of the writing instrument 11 on the XY axis is 20 bits according to the resolution (1024 x 1024) of the touch panel 14. (10-bit X-axis, 10-bit Y-axis) and the touch panel controller 18 to convert and output the dot position on the XY axis of the LCD 12, the LCD 12 corresponding to the dot position This dot position from the LCD controller 16 which lights a dot and the present dot position from the touch panel controller 18 is compared with the last dot position, and when both dot positions are not adjacent, the starting point of drawing this dot position is started. 20, which is the first bit string, is output as it is, and when it is determined to be adjacent to each other, the written communication communication unit 22 converts the deviation per dot of both dot positions into a second bit string of 4 bits or less. To communicate the data of the first or second bit stream in accordance with a predetermined communication protocol. The communication controller 25 includes a communication controller 25 to transmit the image data according to the drawing of the input pen to the counterpart in real time.