Broadband and baseband LAN
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United States of America Patent
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-
Dec 5, 1989
Grant Date -
N/A
app pub date -
Feb 17, 1988
filing date -
Feb 17, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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