Light controller
First Claim
1. A light controller comprising:
- a timing module generating clock cycles; and
a brightness control module controlling a brightness of a light for every one of a predetermined number of clock cycles, wherein the brightness of the light is determined by a duty cycle, and wherein the duty cycle is based on a desired brightness associated with the predetermined number of clock cycles.
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Accused Products
Abstract
A light controller capable of varying the brightness of a light emitting diode in a linear manner. The light controller may control a number of lights in a predetermined pattern or in a pattern designed by the user. A remote control may be used to control and interact with the light controller. The light controller may have inputs for audio signals, tachometer signals, or other external signals. The light controller may be coupled to other light controllers to enable the control of additional lights in a synchronized manner. The light controller may be particularly well suited to controlling light emitting diodes and controlling lights in a vehicle accent lighting application, although many other uses may be apparent.
107 Citations
27 Claims
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1. A light controller comprising:
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a timing module generating clock cycles; and
a brightness control module controlling a brightness of a light for every one of a predetermined number of clock cycles, wherein the brightness of the light is determined by a duty cycle, and wherein the duty cycle is based on a desired brightness associated with the predetermined number of clock cycles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for controlling a light, comprising:
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receiving a clock signal;
receiving a desired brightness of the light associated with a predetermined number of clock signal cycles;
determining a duty cycle based on the desired brightness;
determining a modulation waveform based on the duty cycle; and
transmitting the modulation waveform to the light for the predetermined number of clock signal cycles. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A light controller comprising:
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a timing module generating clock cycles;
a brightness control module controlling a brightness of a light for every one of a predetermined number of clock cycles, wherein the brightness of the light is determined by a duty cycle, and wherein the duty cycle is based on a desired brightness associated with the predetermined number of clock cycles; and
a storage module. - View Dependent Claims (18, 19, 20, 21)
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22. A method for controlling a light comprising:
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receiving a clock signal;
receiving a desired brightness of the light associated with a predetermined number of clock signal cycles;
determining a duty cycle based on the desired brightness;
determining a modulation waveform based on the duty cycle; and
transmitting the modulation waveform to the light for the predetermined number of clock signal cycles, wherein the predetermined number of clock cycles corresponds to a section of a waveform. - View Dependent Claims (23, 24, 25)
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26. Controlling brightness of a light emitting diode by varying a duty cycle of the light emitting diode, wherein a change in brightness of the light emitting diode is perceived by the human eye to be linear.
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27. A light controller comprising:
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means for receiving a clock signal;
means for receiving a desired brightness of the light associated with a predetermined number of clock signal cycles;
means for determining a duty cycle based on the desired brightness;
means for determining a modulation waveform based on the duty cycle; and
means for transmitting the modulation waveform to the light for the predetermined number of clock signal cycles, wherein the predetermined number of clock cycles corresponds to a section of a waveform.
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Specification