Input device, display apparatus and method for controlling of input device

The input device, a display device and input device control method is provided. Input device according to the invention that the communication unit for performing a display device and communication, volume extractor, and the extraction volume piecewise peak level sensor for sensing a sound, extracting a volume from the detected sound period exceeds a predetermined threshold level When it is determined whether the volume interval that exceeds a threshold level exists, it generates an event signal for performing a clear operation on the pattern image displayed on the display device based on the touch input controller which controls the communication unit to transmit to the display device It includes. Accordingly, the present invention can be performed during various using the input device related to the pattern image on the touch screen of the display device operation, it is more convenient with respect to each task and performing intuitively.