Patent ID: 6532003
Filing Date: 2003-03-11
Classification: G06F

Abstract:
A data processing apparatus, comprising: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; a processor executing predetermined processes corresponding to the coordinate data and the key entry data; and a control element detecting false coordinate data generated by a false touch on the coordinate input panel during a key entry operation and controlling key entry data other than the false coordinate data as valid data, without disabling operation of said coordinate detecting device, wherein said control element comprises a receiving element receiving both the key entry data from said keyboard and the coordinate data from said coordinate detecting device; a time monitoring element monitoring a keystroke time interval of said keyboard and a touch period of said coordinate detecting device; and a determination element determining whether the coordinate data from said coordinate detecting device during a key entry operation is valid coordinate data on the basis of the keystroke time interval and the touch period, by comparing the keystroke time interval to the touch period, said processor receiving the valid coordinate data and executing corresponding processes.