Writing check method, especially of signature

摘要

The method involves measuring, storing, and evaluating pressures and pressure changes which the writing person produces through a writing instrument, sideways and straight on a writing surface. The writing surface is preferably a plate, a display or a screen arranged in such way on weighing cells or force sensor, and comprising further weighing cells or force sensor at the side, that four-dimensional pressure courses, identifying the writing person, are recorded when writing on the surface.