Telecommunication device for the deaf with automatic self-identi

Details Telecommunication device for the deaf with automatic self-identi Telecommunication device for the deaf with automatic self-identi

1992-05-20

1994-06-28

Chan, Wing F.

Telephonic communications

Including aid for handicapped user

379 98, 375121, H04M 1100

Patent

active

053254171

ABSTRACT:
A telecommunication device for the deaf includes a self-identification sequence which automatically commences upon the initiation of communication with the device. The self-identification sequence consists of a series of characters which may be separated by pauses and the device listens during the pauses to see if TDD communication has been established. The purpose of the character string is so that a receiving station can identify, with a low rate of error, a calling TDD and therefore switch the incoming call to a TDD equipped operator. This capability is particularly useful for emergency service operators (911 services) which must be able to handle incoming TDD calls with a maximum of efficiency and a minimum of error.

REFERENCES:
patent: 3507997 (1970-04-01), Weitbrecht
patent: 4451701 (1984-05-01), Bendig
patent: 4959847 (1990-09-01), Engelke et al.
patent: 5081673 (1992-01-01), Engelke et al.
patent: 5091906 (1992-02-01), Reed et al.
patent: 5121421 (1992-06-01), Alheim
patent: 5163081 (1992-11-01), Wycherley et al.

Affiliated with

Also associated with

Rating

Telecommunication device for the deaf with automatic self-identi 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 automatic self-identi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telecommunication device for the deaf with automatic self-identi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2382606