Lighting system with lighting dimmer output mapping
First Claim
1. A method for mapping dimming output signal values of a lighting dimmer using a predetermined lighting output function and driving a light source in response to mapped digital data, the method comprising:
- receiving a dimmer output signal;
receiving a clock signal having a clock signal frequency;
detecting duty cycles of the dimmer output signal based on the clock signal frequency;
converting the duty cycles of the dimmer output signal into digital data representing the detected duty cycles, wherein the digital data correlates to dimming levels;
mapping the digital data to light source control signals using the predetermined lighting output function; and
operating a light source in accordance with the light source control signals.
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Accused Products
Abstract
A system and method map dimming levels of a lighting dimmer to light source control signals using a predetermined lighting output function. The dimmer generates a dimmer output signal value. At any particular period of time, the dimmer output signal value represents one of multiple dimming levels. In at least one embodiment, the lighting output function maps the dimmer output signal value to a dimming value different than the dimming level represented by the dimmer output signal value. The lighting output function converts a dimmer output signal values corresponding to measured light levels to perception based light levels. A light source driver operates a light source in accordance with the predetermined lighting output function. The system and method can include a filter to modify at least a set of the dimmer output signal values prior to mapping the dimmer output signal values to a new dimming level.
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Citations
23 Claims
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1. A method for mapping dimming output signal values of a lighting dimmer using a predetermined lighting output function and driving a light source in response to mapped digital data, the method comprising:
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receiving a dimmer output signal; receiving a clock signal having a clock signal frequency; detecting duty cycles of the dimmer output signal based on the clock signal frequency; converting the duty cycles of the dimmer output signal into digital data representing the detected duty cycles, wherein the digital data correlates to dimming levels; mapping the digital data to light source control signals using the predetermined lighting output function; and operating a light source in accordance with the light source control signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A lighting system comprising:
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one or more input terminals to receive a dimmer output signal; a duty cycle detector to detect duty cycles of the dimmer output signal generated by a lighting dimmer; a duty cycle to time converter to convert the duty cycles of the dimmer output signal into digital data representing the detected duty cycles, wherein the digital data correlates to dimming levels; circuitry to map the digital data to light source control signals using a predetermined lighting output function; and a light source driver to operate a light source in accordance with the light source control signals. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification