NETWORK POWER SUPPLY CONTROL SYSTEM, NETWORK POWER SUPPLY EQUIPMENT AND NETWORK POWER DEVICE THEREOF
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United States of America Patent
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Issued Date -
Jan 17, 2013
app pub date -
Jul 11, 2012
filing date -
Jul 12, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A network power supply control system is applicable to a network power supply equipment (PSE) and a network power device (PD) connected through a network cable. A signal generator is disposed on the network PSE for generating and combining an operating signal with a power signal provided by the network PSE. A signal analyzer is disposed on the network PD for extracting the operating signal from the power signal received by the network PD and controlling a load circuit of the network PD according to the operating signal. Alternatively, the signal generator is disposed on the PD and sends a operating signal according to a state of the load circuit and combines the operating signal with a return power signal returned by the network PD, and the signal analyzer is disposed on the PSE for extracting the operating signal from the return power signal received by the network PSE.
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