Port transceiver for providing communication between a signal tr

Details Port transceiver for providing communication between a signal tr Port transceiver for providing communication between a signal tr

1993-04-16

1995-03-07

Horabik, Michael

Pulse or digital communications

Cable systems and components

375219, 34082503, H04B 300, H04L 2500

Patent

active

053965124

ABSTRACT:
A switcher has a plurality of input ports and a plurality of output ports. A plurality of port transceivers each have first and second I/O ports, an input port connected to an output port of the switcher and an output port connected to an input port of the switcher. Each port transceiver provides a first input signal path from the first I/O port to the output port of the transceiver, a second input signal path from the second I/O port to the output port of the transceiver, a first output signal path from the input port of the transceiver to the first I/O port, and a second output signal path from the input port of the transceiver to the second I/O port. Each port transceiver has a first state in which it propagates a signal received at its input port to its second I/O port and a signal received at its first I/O port to its output port and the first output signal path presents a high impedance to the first I/O port, and a second state in which it propagates a signal received at its input port to its first I/O port and a signal received at its second I/O port to its output port and the second output signal path presents a high impedance to the second I/O port.

REFERENCES:
patent: 4736394 (1988-04-01), Giovannelli et al.
patent: 5088112 (1992-02-01), Pyhte,uml/a/ lammi et al.

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