Digital audio output device

Details Digital audio output device Digital audio output device

1975-05-05

1977-01-04

Murray, Richard

Registers

Coded record sensors

Particular sensor structure

179 1SA, 235156, 179 1SF, 358 94, G06K 900, H04M 100, G06F 738

Patent

active

040005658

ABSTRACT:
An apparatus is disclosed for converting silent digital visual display characters into sequentially enunciated audible tones which are digitally coded in serial form. Blind or visually handicapped persons can recognize the audio tone codes to comprehend the visual characters in the optical display.

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patent: 3507997 (1970-04-01), Weitbrecht
patent: 3632887 (1972-08-01), Leipp et al.
patent: 3800082 (1974-03-01), Fish
patent: 3828252 (1974-08-01), Wolff
patent: 3869575 (1975-03-01), Spitz et al.

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