The invention provides a method for inputting, displaying and transmitting handwriting
characters used in a mobile phone and said mobile phone. The method according to
the invention comprises the steps of: inputting handwriting characters; sampling
said handwriting characters; performing A/D conversion of the sampled handwriting
characters to obtain a signal; encoding said signal in accordance with a specific
protocol to obtain encoded data; converting the encoded data into mobile phone
acceptable data, and outputting them; and processing the mobile phone acceptable
data to display the handwriting characters and to transmit them as a short message,
or to receive and display a short message (from other mobile phone) comprising
the handwriting characters.