Electronic musical instrument employing holographic memory

Details Electronic musical instrument employing holographic memory Electronic musical instrument employing holographic memory

1977-06-20

1979-03-27

Witkowski, Stanley J.

Music

Instruments

G10H 306

Patent

active

041459458

ABSTRACT:
An electronic musical instrument of the waveshape memory type comprises a holographic memory; including a plurality of hologram pictures each carrying information of dots which represent in binary coded notation sample values constituting musical waveshapes. Upon key depression, a coherent light beam irradiates the hologram pictures corresponding to the depressed key to reproduce dot images on a photo-electric converter. The converter delivers digital values of waveshape samples. The digital values are converted to analog values, thereby producing musical tones. A large amount of information can be stored in a small size memory.

REFERENCES:
patent: 3098889 (1963-07-01), Buitkus
patent: 3484530 (1969-12-01), Rupert
patent: 3652776 (1972-03-01), Milde, Jr.
patent: 3810106 (1974-05-01), Nadler et al.

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