Yamaha Corporation

Jun-ichi Mishima

Satoshi Suzuki

Takeshi Adachi

Takamichi Masubuchi

Yasuhiko Asahi

An electronic musical instrument includes a key support portion, a plurality of keys pivotally supported on the key support portion, a musical tone signal generator, after sensors, and a musical tone signal control unit. The musical tone signal generator generates a musical tone signal corresponding to each of the plurality of keys. Each after sensor has a plurality of sensors and is arranged in correspondence with the plurality of keys and operated near key depression end positions to for independently generate pieces of key information. The musical signal control unit controls the musical tone signal generator on the basis of the key information.

Electronic musical instrument having key after-sensors and stroke

A keyboard assembly for forming a keyboard apparatus of an electronic musical instrument, including a combination of at least two key units each having a plurality of key members and an elongated bracket portion connecting the key members together, a frame structure to which the key units are assembled together in such a manner that each of the individual key members of the key units is allowed to rock independently of each other about an axis fixed with respect to the frame structure and parallel with the bracket portion of each key unit, and plural combinations of a concavity formed in the bracket portion of one of the key units and a projection formed in the bracket portion of the other of the key units and received in the concavity for establishing a first predetermined positional relationship between each of the key units before the key units are assembled to the frame structure.

Growing community of inventors

Shizuoka, Japan

Jun-ichi Mishima