TOUCHPAD INPUT DEVICE AND TOUCHPAD CONTROL PROGRAM

摘要

A control unit, has a palm rejection function to determine whether a contact region of an object, calculated by detecting electric variance due to the object in proximity of an operating face, is from an fingertip or from a palm. The control unit determines that in a case where the difference between an area of the a first proximity region calculated at a first sensitivity and an area of a second proximity region calculated at a second sensitivity higher than the first sensitivity is large, the contact region is from a palm, and at in a case where the difference is small, the contact region is from a fingertip.