Communications adaptor for a remote action terminal

Details Communications adaptor for a remote action terminal Communications adaptor for a remote action terminal

1992-03-03

1992-12-22

Dwyer, James L.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379104, 379105, H04M 1100

Patent

active

051739348

ABSTRACT:
A communications adaptor for a remote action terminal connected to a telephone line in parallel with a telephone set in order to interchange remote action data with at least one server via the telephone line and a remote action network to which the server is connected, the data being interchanged using a frequency band different from that used by the signals relating to the telephone set, the adaptor including a binary data transmitter/receiver operating by frequency shift keying between two frequencies and the remote action network likewise including a binary data transmitter/receiver operating by frequency shift keying between the same two frequencies, dialog taking place in alternation between the transmitter/receivers by interchange of signals. The adaptor also includes a remote signalling device provided with means for causing signalling to be transmitted by the adaptor indicating that an absence of dialog has been observed for longer than a predetermined period of time.

REFERENCES:
patent: 3586778 (1971-06-01), Riethmeier et al.
patent: 3842207 (1974-10-01), Fretwell
patent: 4332980 (1982-06-01), Reynolds et al.
patent: 4415774 (1983-11-01), Driver
IEEE Global Telecommunications Conference, New Orleans, Dec. 2-5, 1985, vol. 3, paper 46.7, pp. 1439-1442, IEEE, New York, U.S.; J. P. Carise et al.: "Astarte-Telematic Secured Access to the Teleaction Network".
Commutation & Transmission, vol. 8, No. 2, 1986, pp. 65-78, Paris, France, J. P. Carise et al.: "Astarte: Un Reseau Multiservice de Teleaction".
Mini-Micro Systems, vol. 17, No. 3, Mar. 1984, pp. 184-186, 188, Denver, Colo., U.S.; H. Morgan: "Two-Wire Full-Duplex Modem Simplifies Voice and Data Networking".

Affiliated with

Also associated with

Rating

Communications adaptor for a remote action terminal does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Communications adaptor for a remote action terminal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Communications adaptor for a remote action terminal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-978856