Patent ID: 6639140
Filing Date: 2003-10-28
Classification: G10H,Y10S

Abstract:
A musical tone control apparatus of a percussion instrument type comprising:an upper cover which is fixed in position; a pad skin unit having a beat surface which is beaten; a sensing unit which is interconnected with the pad skin unit to construct a pad unit which is embedded at a prescribed position of the upper cover, said sensing unit sensing a beat applied to the beat surface of the pad skin unit, wherein the sensing unit is constructed using a sensor fixing member having elasticity, a radial pressure member having a radial shape, and a piezoelectric sensor in such a way that the sensing unit has a sensitivity responding to an input level of a vibration input which is applied externally in any direction, wherein the piezoelectric sensor is attached to a center part in a radial direction of the radial pressure member so that the piezoelectric sensor is arranged using the sensor fixing member, while the radial pressure member is securely fixed to the pad skin unit with a peripheral portion thereof, and wherein the pad unit, including the piezoelectric sensor, is supported by the sensor fixing member so as to float with respect to the upper cover, whereby the musical tone control apparatus produces a musical tone control signal in response to an output of the piezoelectric sensor.