Key-touch value control device of electronic key-type musical instrument
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United States of America Patent
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Jan 6, 1987
Grant Date -
N/A
app pub date -
May 17, 1985
filing date -
May 19, 1984
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A key-touch value control device for an electronically operated musical instrument including a series of keys, wherein the state of each of the keys is detected to produce a succession of key-state signals each indicative of one of the key-on state, key-off state and key-fly state of the key. In response to each of the key-state signals, a key-touch value signal is produced which is variable with the velocity at which the key is being depressed toward the key-on state and which is representative of the volume of the sound to be produced after the key has reached the key-on state.
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