Music – Accessories – Recording devices
Patent
1996-05-29
1997-05-06
Gellner, Michael L.
Music
Accessories
Recording devices
84171, G10G 304
Patent
active
056273339
ABSTRACT:
A hammer sensor incorporated in a keyboard musical instrument monitors a motion of each hammer assembly, and a controller not only determines a hammer velocity and an impact time for generating a set of music data codes representative of a music performance but also measures an actual distance between the hammer sensor and an impact point against a music string on the basis of a forward trajectory and a backward trajectory measured by the hammer sensor; thereby allowing a worker to easily adjust the hammer sensor to an appropriate position.
REFERENCES:
patent: 4913026 (1990-04-01), Kaneko et al.
patent: 5291011 (1994-03-01), Mantani
Fujiwara Yuji
Furukawa Rei
Kawabata Taro
Stahnke Wayne L.
Tamaki Takashi
Gellner Michael L.
Hsieh Shih-yung
Yamaha Corporation
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