Broadband and baseband LAN

Details Broadband and baseband LAN Broadband and baseband LAN

1988-02-17

1989-12-05

Orsino, Joseph A.

Multiplex communications

Wide area network

Packet switching

370124, 455 3, 358 86, H04J 100

Patent

active

048857475

ABSTRACT:
Described is a communications system for transmitting baseband and broadband signals simultaneously. The system is ideally suited for interconnecting different types of data terminal equipment (DTE) within a building or limited geographical area. The system includes a backbone communications network formed from a plurality of independent communications systems. Each of the plurality of independent communications systems is dedicated to transmit either the baseband signals or the broadband signals. A Filter Coupler (FC) network combines and separates the two different type of signals at the distribution level. One embodiment of the FC includes a filter network coupled in tandem with a high frequency transformer. In an alternate embodiment the FC includes a balun transformer coupled to a directional coupler transformer.

REFERENCES:
patent: 4077006 (1978-02-01), Nicholson
patent: 4564940 (1986-01-01), Yahata
patent: 4675866 (1987-06-01), Takumi et al.
patent: 4764922 (1988-08-01), Dieter et al.

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