Data processing apparatus having control element for detecting false touch

摘要

A data processing apparatus includes a coordinate detecting device outputting coordinate data of a touch point generated by a touch on a coordinate input panel, a keyboard outputting key entry data and a processor executing predetermined processes corresponding to the coordinate data and the key entry data. The data processing device further includes a control element detecting false coordinate data generated by a false touch on the coordinate input panel during a key entry operation and for controlling key entry data other than the false coordinate data as valid data.