Analog data signal switching network with means for cross-connec

Details Analog data signal switching network with means for cross-connec Analog data signal switching network with means for cross-connec

1988-08-11

1989-07-11

Griffin, Robert L.

Multiplex communications

Wide area network

Packet switching

H04Q 1104

Patent

active

048478288

ABSTRACT:
In a switching network for switchingly and selectively deliver a particular one of a plurality of input channel signals to a specific one of a plurality of ouptut channel lines according to a channel selection signal, the input channel signals are sampled at input channel sample-and-hold circuits by input channel sampling signals to produce sampled signals which are arranged time-serially at a combining circuit to form a combined signal. The combined signal is sampled at output channel sample-and-hold circuits connected to the output channel lines, respectively. An extracting signal is synchronous with a particular one of the input channel sampling signals and is applied to a specific one of the output channel sample-and-hold circuits according to the channel selection signal. The specific sample-and-hold circuit samples the combined signal by the extracting signal and extracts a particular one of the sampled signals corresponding to the particular input channel signal. The particular sampled signal as extracted is passed through a lowpass filter so that the particular input channel signal is reproduced. The reproduced particular input channel signal is delivered to the specific output channel.

REFERENCES:
patent: 4313195 (1982-01-01), Lehmann
patent: 4761779 (1988-08-01), Nara et al.

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