| 摘要 |
<p>The present invention relates to a complex-type button device capable of sensing touches and, more specifically, to a button device which is provided in various host systems, includes a button unit, which receives manipulation forces from a user to manipulate functions of the host system for controlling various functions through a control unit, and is characterized by comprising: the button unit, each of which includes a printed circuit board (PCB) pattern and a dome sheet and receives manipulation forces from the user to manipulate functions of the host system, such that a corresponding key value is outputted according to a push manipulation; and a capacitance measuring unit which measures capacitance when a touch manipulation is performed on the button unit, wherein when the touch manipulation is performed on the button unit, the capacitance measuring unit determines whether to manipulate or not and outputs the corresponding key value through the control unit, such that the function of the host system is controlled. The present invention as above has an advantage that the button device with the touch sensing capability is simply arranged without changing the configuration of a digital device having a conventional button unit.</p> |
