Communication apparatus for the handicapped

Details Communication apparatus for the handicapped Communication apparatus for the handicapped

1980-07-11

1981-12-22

Konick, Bernard

179 84VF, H04M 1106

Patent

active

043072666

ABSTRACT:
A communication device coupled to a standard telephone which has an alphanumeric rotary dial or pushbutton keyboard. A simple, easily-learned code (11) is utilized which can be transmitted over telephone lines (14) using the rotary or push-button digits (10). To communicate, the called party enters the appropriate position for the letter of the alphabet to be communicated. A second entry identifies which one of the plurality of letters (or the number) is intended to be transmitted. The calling party has apparatus (18, 20) attached to the telephone set (16) which decodes the two-digit coded entry, and converts the two-digit code to a standard machine-readable format which can be displayed on a standard output device (26) such as an alphanumeric display or, for blind persons, a braille or similar output device. The calling party can transmit a message to the called party, by keying characters into a keyboard (22). The keyed-in characters are converted to speech by speech synthesizer (28) for transmission to the called party.

REFERENCES:
patent: 3780225 (1973-12-01), Shannon
patent: 3896267 (1975-07-01), Sachs et al.
patent: 3967273 (1976-06-01), Knowlton
patent: 4012599 (1977-03-01), Meyer
patent: 4013838 (1977-03-01), Tsai

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