| I.P Abstract & Summary |
The present invention provides a tone control device for a digital piano, including a support forming a key or the bottom surface of a key, and a base plate disposed opposite the support below the support; wherein a first movable part, a second movable part disposed at a predetermined distance from the first movable part and aligned with the first movable part, and a counter movable part disposed at a predetermined distance from the second movable part and aligned with the second movable part are installed on the bottom surface of the support; wherein a first sensor, a second sensor, and a counter sensor are installed on the base plate, and slots are installed in the base plate; wherein, when the key is pressed, the counter sensor detects the degree to which the key has been pressed. |
