Electric lamp and discharge devices: systems – Plural power supplies
Reexamination Certificate
2006-08-01
2006-08-01
Dinh, Trinh Vo (Department: 2821)
Electric lamp and discharge devices: systems
Plural power supplies
C340S311200
Reexamination Certificate
active
07084574
ABSTRACT:
Systems and methods are provided for deriving power for an external device from the power source of a fluorescent light. The power source includes a fluorescent ballast electrically connected to the connectors of a light fixture for receiving an input voltage and for converting the input voltage to a lamp voltage suitable for powering a fluorescent lamp. The fluorescent ballast may be modified to include an output line that outputs a voltage for powering the external device to a power port. The power port may be mounted on or near the fluorescent light. Alternatively, the power port may be integrated within a housing that contains one of the connectors of the light fixture. The ballast may be further modified to include an output line for extracting network data and control signals from the power line carrier signals on the input voltage.
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Flickenger, R.,Wireless Hacks. The NoCat Night Light: How Many Cats Does it Take to Screw in a Light Bulb?, May 10, 2003, pp. 1-3.
Mayer Thomas J.
Roach Peter O.
Roberts, Jr. Pierce J.
Dinh Trinh Vo
King & Spalding LLP
NxSteps Communication, Inc.
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