Mobile communications terminal having key input error prevention function and method thereof
First Claim
Patent Images
1. A mobile communication terminal, comprising:
- a keypad having a plurality of touch keys,wherein;
the keypad comprises an upper row on which a plurality of upper touch keys are aligned and a lower row on which a plurality of lower touch keys are aligned; and
each of the plurality of upper touch keys is set with a relatively higher priority than a corresponding one of the plurality of lower touch keys that is substantially aligned with said each of the plurality of upper touch keys in a columnwise direction based on positions of said each of the plurality of upper touch keys and the corresponding one of the plurality of lower touch keys when both said each of the plurality of upper touch keys and the corresponding one of the plurality of lower touch keys are touched substantially simultaneously to generate a key input;
a plurality of touch sensor units for sensing key inputs generated by touching the plurality of touch keys; and
a controller configured to;
detect an input signal corresponding to an upper touch key of the plurality of upper touch keys and an input signal corresponding to one of the plurality of lower touch keys that is substantially aligned with the upper touch key in the columnwise direction in response to the generated key input;
determine the generated key input as an input corresponding to the upper touch key of the plurality of upper touch keys or an input corresponding to the one of the plurality of lower touch keys based on the relatively higher priority of the upper touch key of the plurality of upper touch keys and the detected input signals;
execute a first operation associated with the upper touch key of the plurality of upper touch keys in response to the generated key input when the input signal corresponding to the one of the plurality of lower touch keys does not reach a reference level; and
execute a second operation associated with the corresponding one of the plurality of lower touch keys when the input signal of the corresponding one of the plurality of lower touch keys reaches the reference level.
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Abstract
A mobile communications terminal and a method for preventing an input error of a key input unit are provided. The mobile communications terminal includes a touch sensor unit for sensing a key that is input by touching a keypad region in order to output a key input signal corresponding to the key and a controller adapted to determine a key input according to either a priority between multiple keys from which key signals are received or whether a received key signal was generated inadvertently.
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Citations
18 Claims
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1. A mobile communication terminal, comprising:
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a keypad having a plurality of touch keys, wherein; the keypad comprises an upper row on which a plurality of upper touch keys are aligned and a lower row on which a plurality of lower touch keys are aligned; and each of the plurality of upper touch keys is set with a relatively higher priority than a corresponding one of the plurality of lower touch keys that is substantially aligned with said each of the plurality of upper touch keys in a columnwise direction based on positions of said each of the plurality of upper touch keys and the corresponding one of the plurality of lower touch keys when both said each of the plurality of upper touch keys and the corresponding one of the plurality of lower touch keys are touched substantially simultaneously to generate a key input; a plurality of touch sensor units for sensing key inputs generated by touching the plurality of touch keys; and a controller configured to; detect an input signal corresponding to an upper touch key of the plurality of upper touch keys and an input signal corresponding to one of the plurality of lower touch keys that is substantially aligned with the upper touch key in the columnwise direction in response to the generated key input; determine the generated key input as an input corresponding to the upper touch key of the plurality of upper touch keys or an input corresponding to the one of the plurality of lower touch keys based on the relatively higher priority of the upper touch key of the plurality of upper touch keys and the detected input signals; execute a first operation associated with the upper touch key of the plurality of upper touch keys in response to the generated key input when the input signal corresponding to the one of the plurality of lower touch keys does not reach a reference level; and execute a second operation associated with the corresponding one of the plurality of lower touch keys when the input signal of the corresponding one of the plurality of lower touch keys reaches the reference level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for detecting a touch key input in a mobile communication terminal, the method comprising:
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receiving a key input applied to both an upper touch key located on an upper row of a keypad and a corresponding lower touch key located on a lower row of the keypad, the corresponding lower touch key substantially aligned with the upper touch key in a columnwise direction, wherein the upper touch key is set with a relatively higher priority than the corresponding lower touch key based on positions of the upper touch key and the corresponding lower touch key; detecting an input signal corresponding to the upper touch key and an input signal corresponding to the corresponding lower touch key in response to the key input; determining the key input as an input corresponding to the upper touch key or the corresponding lower touch key based on the relatively higher priority of the upper touch key and the detected input signals; executing a first operation associated with the upper touch key in response to the key input when the input signal of the corresponding lower touch key does not reach a reference level; and executing a second operation associated with the lower touch key in response to the key input when the input signal of the corresponding lower touch key reaches the reference level. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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Specification