Time division multiplexed backplane with packet mode capability

Details Time division multiplexed backplane with packet mode capability Time division multiplexed backplane with packet mode capability

1995-09-22

1997-03-25

Olms, Douglas W.

Multiplex communications

Pathfinding or routing

Switching a message which includes an address header

370461, 370471, H04L 1256

Patent

active

056152116

ABSTRACT:
An integrated TDM-based/packet-based telecommunications backplane system includes a multi-bit backplane bus, a plurality of TDM data modules and packet based data modules coupled to the backplane bus, and a frame controller coupled to the bus which generates a frame by pre-assigning a first plurality of timeslots of a frame for the fixed rate TDM traffic, and allotting the remainder of the frame timeslots as a pool for packet-based traffic. The TDM data modules, which can include bit, and byte or nibble mode modules, place data on the backplane bus in their allotted time slots. The packet-based data modules contend for the pooled timeslots by raising a request on a "request" thread of the backplane bus when the packet module has a packet to send, and dropping the request and raising a busy flag on the "busy" thread while sending a data packet. In order to insure that only one packet-based data module will attempt to raise the request flag at a given time, the pooled timeslots are divided among the packet data sources for purposes of raising the request flag only. Thus, only one packet-based data module can raise its request flag during a given timeslot of the pool; although when sending data, the packet-based data module can send during all timeslots of the pool.

REFERENCES:
patent: 4569042 (1986-02-01), Larson

Affiliated with

Also associated with

Rating

Time division multiplexed backplane with packet mode capability 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 backplane with packet mode capability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Time division multiplexed backplane with packet mode capability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2210192