Automatic rhythm generator

Details Automatic rhythm generator Automatic rhythm generator

1976-12-09

1979-01-23

Schaefer, Robert K.

Music

Instruments

84DIG12, G10H 102

Patent

active

041354230

ABSTRACT:
An automatic rhythm generator of an electrical musical instrument including a rhythm pattern generator for rhythmically selecting for actuation different ones of a plurality of instrumentation circuits to be sounded and a strobe pulse generating circuit for establishing the appropriate pulse width of a drive pulse needed by each instrumentation circuit for proper actuation thereof. The rhythm pattern generator circuit selectively enables a plurality of drive gates respectively associated with the plurality of instrumentation circuits during selected ones of a succession of periodic rhythm cycles in accordance with a predetermined rhythm pattern. The strobe circuit is synchronized with the rhythm pattern generator and generates during each rhythm cycle a plurality of strobe pulses on a corresponding plurality of outputs respectively associated with the plurality of instrumentation circuits. Each of the strobe pulses has a width preselected for the instrumentation circuit with which it is associated. The enabled drive gates provide a drive pulse to their associated instrumentation circuits in response to, and having a pulse width proportional to that of, the strobe pulse applied thereto.

REFERENCES:
patent: 3255292 (1966-06-01), Park
patent: 3482027 (1969-12-01), Okamoto et al.
patent: 3548065 (1970-12-01), Freeman
patent: 3553334 (1971-01-01), Freeman
patent: 3567838 (1971-03-01), Tennes
patent: 3585891 (1971-06-01), Schwartz
patent: 3760088 (1973-09-01), Nakada
patent: 3763305 (1973-10-01), Nakada et al.
patent: 3764722 (1973-10-01), Southard
patent: 3840691 (1974-10-01), Okamoto
patent: 3918341 (1975-11-01), Bunger

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