Telephone bridge method and apparatus

Details Telephone bridge method and apparatus Telephone bridge method and apparatus

1984-07-10

1986-11-25

George, Keith E.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

375 98, 379 94, H04M 1100, H04L 2708

Patent

active

046250778

ABSTRACT:
An improved telephone bridge apparatus of the type in which a plurality of remote stations communicate with a local station over a plurality of phone lines, wherein each of the plurality of phone lines is assigned to a different one of the plurality of remote stations. Each phone line is connected to an input channel, and each input channel is summed at a summing point, and the collective signal is supplied to a modem. Each phone line is connected to an output channel, each output channel receiving the same broadcast message from the modem. The modem, in turn, is connected to a controller, which communicates with the local station and which polls the remote stations according to a predetermined priority. The improvement includes monitoring means for measuring the signal levels being transmitted along each input channel, and signal level modifying means positioned in the signal paths of each input channel for modifying the level of the signal being transmitted thereto.

REFERENCES:
patent: 3886454 (1975-05-01), Oakley et al.
patent: 4149030 (1979-04-01), Foreman
patent: 4512033 (1985-04-01), Schrock
Electronics, Jun. 1954, pp. 186-188, "Sequentially Gated Automatic Gain Control", by Marcus Eliason.

Affiliated with

Also associated with

Rating

Telephone bridge method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telephone bridge method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone bridge method and apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1159595