Digital interface system

Details Digital interface system Digital interface system

1993-11-17

1995-05-30

Hsu, Alpus

Multiplex communications

Wide area network

Packet switching

370 84, H04J 316, H04Q 1104

Patent

active

054208548

ABSTRACT:
Sub-rate calls of 8.sup.k .times.n bps (where n=1, 2, . . . ) are multiplexed in any combination on a digital transmission path having a basic (unit) bit-rate (64 kbps) as a unit. In order to set a sub-rate call of 8.sup.k .times.n bps in response to a call setting request from a low-speed data terminal, if a circuit switching call of 64 kbps is already set between the switching offices and the multiplex communication can be made at a rate required by the sub-rate call, the multiplex operation is made on 64 kbps circuit switching call to set the sub-rate call between terminals. On the other hand, if the sub-rate call can not be set, a circuit switching call having a new basic bit rate (64 kbps) is set between the switching offices at a time of occurrence of the sub-rate call if necessary to set the sub-rate call between the terminals.

REFERENCES:
patent: 4547877 (1985-10-01), Lehman et al.
patent: 4658152 (1987-04-01), Walters
patent: 4965787 (1990-10-01), Almond et al.
patent: 4965796 (1990-10-01), Petty
patent: 4979169 (1990-12-01), Almond et al.
patent: 4987570 (1991-01-01), Almond et al.
patent: 5005170 (1991-04-01), Nelson
patent: 5014266 (1991-05-01), Bales et al.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-368082