Electronic calculator with musical note generation

Details Electronic calculator with musical note generation Electronic calculator with musical note generation

1979-11-27

1982-06-22

Malzahn, David H.

Boots, shoes, and leggings

G06F 316

Patent

active

043365981

ABSTRACT:
When a key of a key-in section is operated and when an operation unit produces the result of operation, a display is performed on the basis of the keyed-in data and the operation result data stored in the memory unit, while at the same time the notes corresponding to the data are sounded under control of a sound control circuit.

REFERENCES:
patent: 4000565 (1977-01-01), Overby et al.
patent: 4179584 (1979-12-01), Tanimoto et al.
patent: 4185169 (1980-01-01), Tanimoto et al.
patent: 4211892 (1980-07-01), Tanimoto et al.
"Calculators Supply Answers Audibly or in Braille" Electronics Nov. 27, 1975, pp. 39-40.
"`Talking` Calculator Announces Keystroke, Answer", New Equipment Digest, Apr. 1976.

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