Contact determination apparatus

Abstract

A contact determination apparatus includes a detection electrode having first and second end portions positioned at both ends and provided along a contact portion; a shield electrode provided facing the detection electrode and capacitively coupled to the detection electrode; an alternating current signal outputter configured to output an alternating current signal to the detection electrode or the shield electrode; a first wire connected to the first end portion of the detection electrode; a second wire connected to the second end portion of the detection electrode; and a determiner configured to determine presence or absence of an abnormality in the detection electrode based on a first output signal that is output from the first wire and a second output signal that is output from the second wire, and determine that a detection target is in contact with the contact portion based on the first output signal or the second output signal.

Dependencies are inferred from the claim text.