System and method for a self-calibrating input device

摘要

An input device for inputting a designated value specified by an operator includes a designated value change unit for changing the designated value by a predetermined first variation amount when it receives a designated value change directive from an operator requesting the designated value to be changed and a variation amount change unit that changes the variation amount in the designated value change unit to a second variation amount that is smaller than the first variation amount when it receives a directive for changing the designated value in a direction different from the direction by the designated value change directive within a predetermined variation amount change period after receiving the designated value change directive, and that maintains the variation amount in the designated value change unit as the first variation amount when it receives a directive for changing the designated value in a direction different from the direction by the designated value change directive after the variation amount change period has lapsed.