Digital communications network with unlimited channel expandabil

Details Digital communications network with unlimited channel expandabil Digital communications network with unlimited channel expandabil

1990-10-01

1992-08-04

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 63, 36518902, H04Q 1104

Patent

active

051365790

ABSTRACT:
A digital communication network (10) with a multiple space storage, time space-time configuration defined by a first, or input, time stage (12), a second, or output, time stage (14) and a preselected number of space stages (16, 22, 24) interconnected between the time stages 12, 14) that introduce time delays which are compensated for by means for time shifting the data in a shadow memory (32) relative to data in a regular memory (34). On-line expansion is accomplished by operating the network (10) off of one of the regular memory and the shadow memory (32) during the expansion, introducing the amount of compensation required by the expansion and then shifting operation over to the other memory. The selection between memories (34, 32) is achieved by means of a trislatable device (38).

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patent: 4849964 (1989-06-01), van Baardewijk
patent: 4954988 (1990-09-01), Robb
patent: 4959774 (1990-09-01), Davis

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