Time division multiplexed PABX communication switching system

Details Time division multiplexed PABX communication switching system Time division multiplexed PABX communication switching system

1977-06-13

1978-05-02

Stewart, David L.

179 15BY, H04J 312

Patent

active

040876438

ABSTRACT:
A processor controlled communication switching system or PABX uses time division multiplexing with pulse width modulation of audio signals. Switching to establish communication paths between peripheral devices serviced by the system is distributed among the peripheral devices and controlled by command signals issued to the peripheral devices by a processor implemented common control. All peripheral devices transmit to the common control on a communication send line and receive signals from the common control on a communication receive line. The particular illustrated system services up to fifty two-way peripheral device ports and is inherently nonblocking.

REFERENCES:
patent: 3529089 (1970-09-01), Davis
patent: 3732374 (1973-05-01), Rocher
patent: 3863030 (1975-01-01), Mills
patent: 3921137 (1975-11-01), McClearn
patent: 3924077 (1975-12-01), Blakeslee
patent: 3937892 (1976-02-01), Bloch
patent: 3959594 (1976-05-01), Srivastava
patent: 3961139 (1976-06-01), Bowman

Affiliated with

Also associated with

Rating

Time division multiplexed PABX communication switching 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 Time division multiplexed PABX communication switching system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time division multiplexed PABX communication switching system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2159800