Music – Instruments
Patent
1985-09-03
1987-09-22
Witkowski, S. J.
Music
Instruments
340365S, 381104, G01H 146
Patent
active
046947256
ABSTRACT:
A method and apparatus for establishing the volume level of a tone generator associated with a keyboard in which the tone generator will output a click tone when each key on the keyboard is actuated. In establishing the volume level of a click tone, the keyboard is put into a volume setting mode by the actuation of two key members of the keyboard. The subsequent actuation of each key member will produce a different volume level of the click tone. The actuating of a key member results in the storing of a count in a storage member. The storage member is then downcounted until it reaches zero. Upon reaching the count of zero, processing means generates a pulse train in which the pulse width is determined by the time it takes for the storage member to count down to zero.
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Patents Abstracts of Japan, vol. 8, No. 269 (P-319)(1706), 12-8-84; JP 59-136846.
Patents Abstracts of Japan, vol. 9, No. 23 (E-293)(1746), 1-30-85; JP 59-169213.
Rohulich John J.
Seevers Daniel B.
Hawk Jr. Wilbert
Lavin Richard W.
NCR Corporation
Sessler Jr. Albert L.
Warren David S.
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