Telephone based control system

Details Telephone based control system Telephone based control system

1983-12-02

1985-11-05

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

179 2A, 370 62, H04Q 1104

Patent

active

045518327

ABSTRACT:
A telephone based control system comprises a central control console, a digital time division multiplexed (TDM) telephone system incuding a PBX matrix switch with signal ports adapted for direct connection to PBX primary port telset devices and to the central control console, and including primary port telsets adapted for connection to PBX secondary port devices, the control system further comprising secondary port control units, each connected to an associated one of the primary port telsets, for controlling the operation of one or more controlled devices located in proximity to the associated telsets.

REFERENCES:
patent: 3819862 (1974-06-01), Hedges
patent: 4174064 (1979-11-01), Pratt
patent: 4266097 (1981-05-01), Cannon et al.
patent: 4330886 (1982-05-01), Fukuda et al.
patent: 4332980 (1982-06-01), Reynolds et al.
patent: 4390750 (1983-06-01), Bartelink

Affiliated with

Also associated with

Rating

Telephone based control system 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 based control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone based control system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-299562