Key touch data generation circuit of an electronic musical instr

Details Key touch data generation circuit of an electronic musical instr Key touch data generation circuit of an electronic musical instr

1991-10-11

1993-03-30

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84687, G10H 1053, G10H 118

Patent

active

051986051

ABSTRACT:
A key depression speed is measured in units of keys of a keyboard of an electronic musical instrument by a counter for counting clock pulses, and the measured value is converted into key touch data. Counters, the number of which is smaller than the total number of keys of the keyboard are used, and one count channel is assigned to two or more keys. When two keys assigned to the same count channel are successively depressed, the initial value of the corresponding count channel is set, so that an error of the measurement values sequentially obtained in correspondence with the key depression speeds of the keys is minimized.

REFERENCES:
patent: 4939973 (1990-07-01), Suzuki

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