Communications: electrical – Systems – Selsyn type
Patent
1999-10-12
2000-10-31
Crosland, Donnie L.
Communications: electrical
Systems
Selsyn type
34031002, 34031008, 34082572, 375257, 375259, 455 31, 455 33, H04B 100, G08C 1900
Patent
active
061409111
ABSTRACT:
Electrical supply current, sufficient to power a wireless access point, is transmitted concurrently with a network data signal across a transmission line. A power and data coupler couples the network data signal and the power signal, received through a data input and a power input respectively, and transmits the coupled signal, to a distance of three meters or more, over the transmission line to a power and data decoupler. The power and data decoupler separates the power signal from the network data signal and supplies those signals to a power output port and a data output port, respectively, for use by a wireless access node. The power signal may be modulated at a low frequency relative to the frequency of the data signal, and the network data signal has a data transmission rate of one megabit/second or higher.
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Burns Lawrence M.
Fisher David A.
Muther Stephen E.
3Com Corporation
Crosland Donnie L.
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