Electronic melody generating system having memory separated from

Details Electronic melody generating system having memory separated from Electronic melody generating system having memory separated from

1990-03-14

1992-02-18

Witkowski, Stanley J.

Music

Instruments

Electrical musical tone generation

84621, 84624, 84DIG9, 84DIG10, G10H 114, G10H 700

Patent

active

050883798

ABSTRACT:
A melody generating system is fabricated from a switch unit operative to produce an activation signal, an analog signal producing unit responsive to the activation signal and producing an analog melody signal carrying pieces of melody information used for reproducing a melody and a sound unit responsive to the analog melody signal for reproducing the melody, wherein the analog signal producing unit comprises an analog signal producing circuit integrated on a single semiconductor chip and responsive to the activation signal for producing a read out controlling signal and a memory circuit storing the pieces of melody information and responsive to the read out controlling signal for producing a digital melody information carrying signal, and the analog signal producing circuit is further responsive to the digital melody information carrying signal for producing the analog melody signal, so that a system supplier easily copes with a request for a new melody by changing the pieces of melody information stored in the memory.

REFERENCES:
patent: 4301704 (1981-11-01), Nagai et al.
patent: 4788896 (1988-12-01), Uchiyama et al.
patent: 4922795 (1980-05-01), Suzuki

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