Universal microcomputer chip for electronic musical machine

Details Universal microcomputer chip for electronic musical machine Universal microcomputer chip for electronic musical machine

1996-12-13

1998-09-08

Wysocki, Jonathan

Music

Instruments

Electrical musical tone generation

84604, 84622, 84659, G10H 700

Patent

active

058047506

ABSTRACT:
A control circuit is integrated in a semiconductor chip for controlling operation of an electronic musical instrument according to a custom program stored in an external memory so as to generate a musical tone. In the control circuit, an internal memory is formed in the semiconductor chip separately from the external memory for permanently storing a common program which is dedicated to synthesis of the musical tone while the custom program stored in the external memory is customized for the operation of the electronic musical instrument. A tone synthesizer is formed in the same semiconductor chip for synthesizing -,he musical tone when the common program is executed. A central processor is formed in the same semiconductor chip integrally with the tone synthesizer and the internal memory for executing the custom program to control the operation of the electronic musical instrument and for executing the common program to effectuate the synthesis of the musical tone to generate the same sequentially in response to the operation of the electronic musical instrument.

REFERENCES:
patent: 5376750 (1994-12-01), Takeda et al.
patent: 5584034 (1996-12-01), Usami et al.

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