Keyboard musical instrument, method of controlling actuator in the keyboard musical instrument, and non-transitory recording medium storing program for controlling the actuator

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United States of America Patent

PATENT NO 9099062
APP PUB NO 20140020543A1
SERIAL NO

13944369

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Abstract

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A keyboard musical instrument including: a key; a hammer; an actuator configured to drive at least one of the key and the hammer in a movement direction in which the at least one of the key and the hammer moves in a key depression stroke; a hammer detector configured to detect a hammer-motion related value that relates to a motion of the hammer; a trajectory generator configured to generate a target trajectory of the at least one of the key and the hammer based on automatic performance information that defines a motion target value of the at least one of the key and the hammer; a feedback-value generator configured to generate a feedback value based on the hammer-motion related value in automatic performance detected by the hammer detector; and a controller configured to servo-control the actuator based on the generated target trajectory and the generated feedback value.

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Patent Owner(s)

Patent OwnerAddress
YAMAHA CORPORATIONSHIZUOKA

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujiwara, Yuji Hamamatsu, JP 163 1847
Matsuo, Yoshiya Hamamatsu, JP 8 37
Oba, Yasuhiko Hamamatsu, JP 41 327

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