Handwriting input system and handwriting input method

Abstract

A handwriting input system includes a handwriting pen, a handwriting plate and a processing unit. The handwriting pen includes a pen body, a first sensing unit and a first communication unit. The first sensing unit senses an action of the pen body to generate a sensing data. The handwriting plate includes a touch unit, a display unit and a second communication unit. The touch unit senses a contact trajectory and a contact time while the handwriting pen contacts the handwriting plate. The processing unit is selectively disposed in one of the handwriting pen and the handwriting plate. The processing unit calculates a tilt angle of the pen body according to the sensing data, determines a contact shape according to the tilt angle, determines an ink output amount according to the contact time, and determines a handwriting image according to the contact trajectory, the contact shape and the ink output amount.