Telecommunication device for the deaf with interrupt and pseudo-

Details Telecommunication device for the deaf with interrupt and pseudo- Telecommunication device for the deaf with interrupt and pseudo-

1992-05-20

1994-07-05

Chan, Wing F.

Telephonic communications

Including aid for handicapped user

379 98, 375121, 3701101, H04M 1100

Patent

active

053274792

ABSTRACT:
A telecommunication device for the deaf operates under conventional Baudot communication protocol, but has enhanced features enabling it to handle interrupts either from a conventional or a similar TDD. The improved TDD is also capable of pseudo-duplex communication with a similar TDD in which each device transmits packets of characters alternatively to the other thus making it appear to the users that simultaneous transmission is occurring. The implementation of these features is done in such a way that the TDD is fully capable of communication with existing TDD devices and the device obeys normals rules and conventions for Baudot communication.

REFERENCES:
patent: 3025442 (1991-06-01), Lynk et al.
patent: 3507997 (1970-04-01), Weitbrecht
patent: 4959847 (1990-09-01), Engelke et al.
patent: 5091906 (1992-02-01), Reed et al.
patent: 5121421 (1992-06-01), Alheim
R. J. Cooper, "Break feature for half-duplex modem", IBM Technical Disclosure Bulletin, vol. 17, No. 8, pp. 2386-2387 Jan. 1975.

Affiliated with

Also associated with

Rating

Telecommunication device for the deaf with interrupt and pseudo- does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telecommunication device for the deaf with interrupt and pseudo-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telecommunication device for the deaf with interrupt and pseudo- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-802473