Patent ID: 11868577
Assignee: ALPS ALPINE CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 1:
2. An input check device comprising:
a coordinate detection part configured to detect coordinates of a touch operation a user performs on an operating surface when operating an operating part through the operating surface;
a pressing force detection part configured to detect a pressing force of the touch operation; and
an identifying part configured to determine whether the operating part is ON or OFF based on the pressing force detected in the pressing force detection part, said identifying part being configured to determine that the operating part is selected upon determining that the operating part is in a first ON mode, and determine that a selection of the operating part is confirmed upon determining that the operating part is in a second ON mode, wherein:
after determining that the operating part is switched from the first ON mode to a second OFF mode while the pressing force decreasing, the identifying part detects a local minimum value of the pressing force at which the pressing force resumes to increase; and
the identifying part determines that the operating part is switched from the second OFF mode to the second ON mode when, following the detection of the local minimum value, the pressing force surpasses a predetermined threshold that is set based on the local minimum value and that is greater than the local minimum value, and determines that the operating part is placed in a state in which the operating part is not selected, following the detection of the local minimum value, upon determining that the pressing force is less than or equal to a first threshold, wherein:
when the pressing force surpasses the first threshold while the operating part is in a first OFF mode, the identifying part determines that the operating part is turned to the first ON mode;
when the pressing force surpasses the first threshold and becomes equal to or less than a second threshold, the second threshold being higher than the first threshold and being a predetermined proportion of a peak value of the pressing force, the identifying part determines that the operating part is switched from the first ON mode to the second OFF mode; and
within a predetermined time after determining that the operating part is switched from the first ON mode to the second OFF mode, the identifying part detects the local minimum value of the pressing force.