Interactive telephone communication system for hearing-impaired

Details Interactive telephone communication system for hearing-impaired Interactive telephone communication system for hearing-impaired

1990-12-13

1992-06-09

Dwyer, James L.

Telephonic communications

Including aid for handicapped user

379 97, 34082519, H04M 1100

Patent

active

051214210

ABSTRACT:
A novel interactive telephone communication system and method are provided which allow a hearing-impaired person, using a TDD, to send and receive information over a conventional two-way telephone subscriber network without communicating directly with another person. The hearing impaired person communicates over the subscriber network with a TDD coupled directly or indirectly to the network. The automated processing system includes a receiving circuit coupled to the network to receive communication signals from the hearing-impaired caller and processing means for processing a received communication signal according to a predefined control matrix. The processing means includes retrieval means for selectively retrieving one of a plurality of separately addressed TDD displayable messages stored in an associated computer database. Transmitting means are also provided for sending a retrieved TDD displayable message to the callers TDD for display. Depending upon the embodiment, the communication signal received by the system can comprise either a conventional touch-tone type telephone signal, a rotary type telephone signal or a TDD (e.g., Baudot) coded signal. A related processing method is also disclosed.

REFERENCES:
patent: 3381276 (1968-04-01), James
patent: 4012599 (1977-03-01), Meyer
patent: 4268721 (1981-05-01), Nielson et al.
patent: 4307266 (1981-12-01), Messina
patent: 4320256 (1982-03-01), Freeman
patent: 4426555 (1984-01-01), Underkoffler
patent: 4677659 (1987-06-01), Dargan

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