Wideband switching architecture

Details Wideband switching architecture Wideband switching architecture

1981-08-27

1983-08-30

Britton, Howard

Facsimile and static presentation processing

Static presentation processing

Attribute control

179 2TS, 34082580, 358181, H04N 710

Patent

active

044020082

ABSTRACT:
A communication method and wideband switching network in which wideband signals are communicated through the network with minimal crosstalk between the wideband signals. Minimal crosstalk is achieved by a network architecture and by grounding both ends of all unused video paths. Each stage of the network has a plurality of switching input and output arrays. Each input array has one input terminal and each output array has one output terminal. Output and input terminals of the input and output arrays, respectively, are interconnected to form a nonblocking stage. Each array is one integrated circuit (IC), and crosstalk is reduced by allowing only one wideband signal to be present in an IC at any one time and by grounding all unused output and inputs in the arrays.

REFERENCES:
patent: 4125855 (1978-11-01), Davis
patent: 4302771 (1981-11-01), Gargini
patent: 4331950 (1982-05-01), Barabas
patent: 4349750 (1982-09-01), Geurts
BBC Engineering, Jul. 1970, No. 83, pp. 19-28, (Gt. Britain), Shelton, W. T., "Solid-State Video Switching Matrix".
NEC Research & Development, Jul. 1981, No. 62, pp. 49-56, (Japan), "Model AO-3-A Video Switching Equipment of Television Network".

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