Communications: electrical – Systems – Selsyn type
Reexamination Certificate
2006-12-05
2006-12-05
Nguyen, Hung (Department: 2612)
Communications: electrical
Systems
Selsyn type
C340S315000, C340S315000, C340S315000, C340S568200, C340S687000, C370S410000, C370S908000
Reexamination Certificate
active
07145439
ABSTRACT:
A method for communicating multi-bit data from a powered device being powered over communication cabling to power sourcing equipment, the method comprising: exhibiting a signature indicative of a device to be powered over communication cabling; sensing a voltage level indicative of remote powering over communication cabling; prior to connecting power to operational circuitry, transmitting first multi-bit information; subsequently to the transmitting first multi-bit information, connecting power received over the communication cabling to the operational circuitry; receiving information from the operational circuitry; subsequent to receiving the information disconnecting the received power from the operational circuitry; subsequent to the disconnecting, transmitting second multi-bit information associated with the operational circuitry, the second multi-bit information comprising at least one bit being a function of the received information; and re-connecting power received over the communication cabling to the operational circuitry.
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IEEE 802.3af-2003 Standard—“Data Terminal Equipment Power via Media Dependent Interface”; IEEE New York; Jun. 18, 2003.
Admon Dan
Blaut Roni
Darshan Yair
Ferentz Alon
Rimboim Poldi
Kahn Simon
Nguyen Hung
PowerDsine Ltd.
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