Switch sensing emergency lighting power supply
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Accused Products
Abstract
In embodiments of the present invention improved capabilities are described for systems and methods that employ a control component and/or power source integrated in an LED based light source to control and/or power the LED light source wirelessly. In embodiments, the LED based light source may take the form of a standard light bulb that plugs into a standard lighting socket or fixture.
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Citations
40 Claims
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1-20. -20. (canceled)
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21. A lighting power supply comprising:
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a power input adapted to receive power via a power supply circuit, wherein the power supply circuit is adapted to receive a supply of power from a primary source of power through a switch and includes a secondary source of power; an impedance sensor configured to generate an output indicative of an impedance, resistance or capacitance associated with the power supply circuit; and a controller configured to; determine an operational state of the switch based on a comparison of one or more measurements of the output of the impedance sensor and a threshold impedance, wherein the threshold impedance is established by the controller; and cause the power from the secondary source of power to be supplied to a light source when power from the primary source is not present on the power input and the determined operational state of the switch indicates that the switch is in a closed state. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A switch sensing power supply comprising:
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a power input adapted to receive power via a power supply circuit, wherein the power supply circuit is adapted to receive power from a primary source of power through a switch and includes a secondary source of power; a housing configured for connecting to the power input and to a device; a sensor configured to generate an output indicative of an impedance, resistance or capacitance associated with the power supply circuit; and a controller configured to; determine an operational state of the switch based on a comparison of one or more measurements of the output of the sensor and a threshold impedance, wherein the threshold impedance is established by the controller; and cause the power from the secondary source of power to be supplied to the device when power from the primary source is not present on the power input and the determined operational state of the switch indicates that the switch is in a closed state. - View Dependent Claims (32, 33, 34, 35, 36)
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37. A lighting adapter comprising:
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a first connector configured to connect the adapter to a power supply circuit and a second connector configured to connect a lighting device to the adapter; a power input configured to receive power via the power supply circuit through the first connector, wherein the power supply circuit is configured to receive a power from a primary source of power through a switch and includes a secondary source of power; a sensor configured to sense an impedance, resistance or capacitance associated with the power supply circuit through the first connector and generate an output indicative of the sensed impedance, resistance or capacitance; and a controller configured to; determine an operational state of the switch based on a comparison of one or more generated outputs of the sensor and a threshold impedance, wherein the threshold impedance is established by the controller; and cause power from the secondary source of power to be supplied to the lighting device when power from the primary source is not present on the power input and the determined operational state of the switch indicates that the switch is in a closed state. - View Dependent Claims (38, 39, 40)
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Specification