Power transfer apparatus for concurrently transmitting data and power over data wires
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United States of America Patent
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Nov 30, 1999
Grant Date -
N/A
app pub date -
May 29, 1997
filing date -
May 29, 1997
priority date (Note) -
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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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