Analog amplifier-multiplexer for a data system

Details Analog amplifier-multiplexer for a data system Analog amplifier-multiplexer for a data system

1987-09-04

1990-02-27

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

307243, H04J 302

Patent

active

049052381

ABSTRACT:
An analog amplifier multiplexer for a data system in which a plurality of differential signal channels are multiplexed onto a pair of differential signal lines includes a differential amplifier connected to each pair of differential signal lines which are to be multiplexed and a current switch connected to each differential amplifier which ensures that an individual differential amplifier will amplify the differential signal applied to it only when it is selected to do so by a selection signal. The selection signal and the current switch ensure that only one differential amplifier amplifies its corresponding differential signal and supplies it to an additional circuitry at any one time.

REFERENCES:
patent: 3213290 (1965-10-01), Klein et al.
patent: 3594590 (1971-07-01), Smith
patent: 3601634 (1971-08-01), Ebertin et al.
patent: 3716727 (1973-02-01), Stehlin et al.
patent: 4146750 (1979-03-01), Spiesman
patent: 4591740 (1986-05-01), Anderson et al.
patent: 4755765 (1988-07-01), Ferland

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