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Mobile communications terminal having key input error prevention function and method thereof

  • US 7,535,459 B2
  • Filed: 03/26/2007
  • Issued: 05/19/2009
  • Est. Priority Date: 03/28/2006
  • Status: Active Grant
First Claim
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1. A mobile communications terminal comprising:

  • a keypad having a plurality of touch keys and touch sensor units for sensing key inputs received from touching of the plurality of touch keys, and outputting a key input signal according to a sensed key input; and

    a controller detecting key input signals corresponding to two or more of the plurality of touch keys input via the keypad within a predetermined time interval, determining a priority for each of the plurality of the touch keys, and recognizing one of the two or more of the plurality of touch keys as a key input according to the determined priority,wherein the controller;

    determines a task which is currently being performed;

    identifies a first touch key among the plurality of touch keys that is not related to the task currently being performed;

    identifies a second touch key among the plurality of touch keys that is related to the task currently being performed;

    adjusts a sensitivity level of the first touch key to be lower than a sensitivity level of the second touch key;

    detects a key input signal corresponding to each of the plurality of touch keys; and

    determines a touch key having a highest sensitivity level corresponding to the detected key input signal as the key input.

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