Electronic musical instrument

Details Electronic musical instrument Electronic musical instrument

1991-01-15

1993-12-21

Isen, Forester W.

Music

Instruments

Electrical musical tone generation

84623, 84624, G10H 102

Patent

active

RE0344818

ABSTRACT:
An electronic musical instrument includes circuitry for modifying an ordinary address signal which changes at a uniform rate over one cycle of a waveform, into a modified address signal whose rate varies in one cycle of the waveform by the use of a modification signal.
The modified address signal accesses a storage device such as a ROM in which waveform data is stored, thereby producing the modified waveform data from the storage device. The modification signal is obtained from the ordinary address signal through a predetermined logic circuit.

REFERENCES:
patent: 4175464 (1979-11-01), Deutsch
patent: 4183275 (1980-01-01), Niimi et al.
patent: 4223582 (1980-09-01), Kato et al.
patent: 4249447 (1981-02-01), Tomisawa

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