Controller for a non-blocking broadcast network

Details Controller for a non-blocking broadcast network Controller for a non-blocking broadcast network

1995-09-18

1998-09-01

Zimmerman, Brian

Communications: electrical

Continuously variable indicating

With meter reading

34082503, 370388, 370357, 370371, 370381, 379220, 379271, H04Q 900

Patent

active

058016414

ABSTRACT:
A controller for a nonblocking broadcast switching network comprising an input stage, an output stage, and a middle stage. The input stage has N.sub.1 or n.sub.1 r.sub.1 input ports and r.sub.1 switches, where n.sub.1 .gtoreq.2 and r.sub.1 .gtoreq.1 and are integers. The network also includes an output stage. The output stage has N.sub.2 or n.sub.2 r.sub.2 output ports and r.sub.2 switches, where n.sub.2 .gtoreq.2 and r.sub.1 .gtoreq.1 and are integers. There is also a middle stage. The middle stage has m switches, where ##EQU1## The m switches are in communication with the r.sub.1 switches and r.sub.2 switches. The middle stage of m switches has L inputs, where L.gtoreq.r.sub.1 and is an integer, and J outputs, where J.gtoreq.r.sub.2 and is an integer, corresponding to the n.sub.1 input ports and n.sub.2 output ports, x or fewer of the m switches, where 1.ltoreq.x.ltoreq.m, always available to form a connection between an idle input port and a plurality of idle output ports, but no output port is connected to more than 1 input port. In a preferred embodiment, the controller includes a mechanism for determining which middle stage switches are idle at a given time in the network. The controller also includes a mechanism for choosing middle stage switches from only the idle middle stage switches to form a desired broadcast connection between an idle input port and a plurality of idle output ports. Preferably, the mechanism for choosing chooses the minimum number of idle middle stage switches to form the desired broadcast connection.

REFERENCES:
patent: 4245214 (1981-01-01), Beirne
patent: 4394541 (1983-07-01), Seiden
patent: 4417244 (1983-11-01), Melas
patent: 4417245 (1983-11-01), Melas et al.
patent: 4771419 (1988-09-01), Graves et al.
patent: 4914429 (1990-04-01), Upp
patent: 5450074 (1995-09-01), Yoshifuji

Affiliated with

Also associated with

Rating

Controller for a non-blocking broadcast network does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Controller for a non-blocking broadcast network, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controller for a non-blocking broadcast network will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-274021