Method and apparatus for sending a data message to a selected st

Details Method and apparatus for sending a data message to a selected st Method and apparatus for sending a data message to a selected st

1983-07-12

1985-11-05

Rubinson, Gene Z.

179 2DP, 179 55, 179 18B, H04M 1100

Patent

active

045515816

ABSTRACT:
For use with a telephone switching system serving a plurality of stations and having a central processor for generating data messages and a ringing circuit for generating ringing signals to a selected station, method and apparatus are disclosed for sending a data message to a selected station during a silent interval between ringing signals. The apparatus includes a detector and a sender. Responsive to a first ringing signal, the detector generates a status signal representative of the silent interval between ringing signals. During the silent interval, the sender sends to the selected station a frequency shift keyed signal representative of the data message.

REFERENCES:
patent: 3727003 (1983-04-01), Paraskevakos
patent: 4121053 (1978-10-01), Dick
patent: 4140882 (1979-02-01), Regan et al.
patent: 4242539 (1980-12-01), Hashimoto
patent: 4320258 (1982-03-01), McDonald
patent: 4355205 (1982-10-01), Walker
patent: 4383138 (1983-05-01), Castro et al.

Affiliated with

Also associated with

Rating

Method and apparatus for sending a data message to a selected st does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for sending a data message to a selected st, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for sending a data message to a selected st will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-296602