A pen pressure division method using personal distribution

To increase the optimal number of divisions of the pen pressure space and achieve greater pen pressure usability, we present four pen pressure division variations: division according to personal/aggregation pen pressure use distribution with/without visual feedback of uniform level widths and the traditional even division method. Two experiments were conducted to investigate pen pressure use distribution and to evaluate the performance of these methods. Results indicate that the subjects performed fastest and with the fewest errors when the pen pressure space was divided according to personal distribution with visual feedback of uniform level widths (PU) and performed worst when the pen pressure space was divided evenly. With PU method, the optimal number of divisions of the pen pressure space was 8. Visual feedback of uniform level widths enhanced performance of uneven division. The findings of this study have implications for human-oriented pen pressure based user interface designs.