Interactive telephonic device for `VCO` relay communication

Details Interactive telephonic device for `VCO` relay communication Interactive telephonic device for `VCO` relay communication

1994-10-03

1996-05-28

Chan, Wing F.

Telephonic communications

Including aid for handicapped user

379 96, 34082519, H04M 1100

Patent

active

055219608

ABSTRACT:
An interactive telephonic apparatus having means of connectivity between a hearing impaired individual and the telephone RELAY system employing `Voice Carrier Over` (VCO) technology. The design of this apparatus and means of operation eliminate the keyboard controls and handset now employed in `Telephone Devices for the Deaf` (TDD). The resulting apparatus provides hearing impaired individuals, especially those of advanced age with mental, mobility and visual deficiencies, simplified low cost access to the telephone RELAY system.

REFERENCES:
patent: 4268721 (1981-05-01), Nielson et al.
patent: 4608457 (1986-08-01), Fowler et al.
patent: 4674112 (1987-06-01), Kondraske et al.
patent: 4754474 (1988-06-01), Feinson
patent: 5081673 (1992-01-01), Engelke et al.
patent: 5163081 (1992-11-01), Wycherley et al.
patent: 5280519 (1994-01-01), Nakajima et al.

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