INTENSITY CHANGING WITH REDUCED FLICKER FOR DIGITALLY-CONTROLLED LIGHTING
First Claim
1. A system for changing light source intensity, comprising:
- a processor configured to;
receive a command intensity for a light source, wherein the light source has a current intensity, and wherein an intensity of the light source is ramped toward the command intensity from the current intensity automatically;
determine a non-linear curve for the intensity of the light source, wherein at least a portion of the non-linear curve includes a beginning portion slope that is steeper at a beginning of the portion than an end portion slope at an end of the portion; and
cause a change of a light source intensity by ramping over a time interval, wherein the light source intensity targets conforming to the non-linear curve for the intensity of the light source; and
a memory coupled to the processor and configured to provide instructions to the processor.
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Accused Products
Abstract
A system for changing a light source intensity comprises a processor and a memory. The processor is configured to receive a command intensity for a light source, wherein the light source has a current intensity, and wherein an intensity of the light source is ramped toward the command intensity from the current intensity automatically. The processor is further configured to determine a non-linear curve for the intensity of the light source, wherein at least a portion of the non-linear curve includes a beginning portion slope that is steeper at a beginning of the portion than an end portion slope at an end of the portion and to cause a change of a light source intensity by ramping over a time interval, wherein the light source intensity targets conforming to the non-linear curve for the intensity of the light source. The memory coupled to the processor and configured to provide instructions to the processor.
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Citations
21 Claims
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1. A system for changing light source intensity, comprising:
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a processor configured to; receive a command intensity for a light source, wherein the light source has a current intensity, and wherein an intensity of the light source is ramped toward the command intensity from the current intensity automatically; determine a non-linear curve for the intensity of the light source, wherein at least a portion of the non-linear curve includes a beginning portion slope that is steeper at a beginning of the portion than an end portion slope at an end of the portion; and cause a change of a light source intensity by ramping over a time interval, wherein the light source intensity targets conforming to the non-linear curve for the intensity of the light source; and a memory coupled to the processor and configured to provide instructions to the processor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A computer program product for changing light source intensity, the computer program product being embodied in a computer and comprising computer instructions for:
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receiving a command intensity for a light source, wherein the light source has a current intensity, and wherein an intensity of the light source is ramped toward the command intensity from the current intensity automatically; determining a non-linear curve for the intensity of the light source, wherein at least a portion of the non-linear curve includes a beginning portion slope that is steeper at a beginning of the portion than an end portion slope at an end of the portion; and causing a change of a light source intensity by ramping over a time interval, wherein the light source intensity targets conforming to the non-linear curve for the intensity of the light source.
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16. A method for changing light source intensity, comprising:
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receiving a command intensity for a light source, wherein the light source has a current intensity, and wherein an intensity of the light source is ramped toward the command intensity from the current intensity automatically; determining a non-linear curve for the intensity of the light source, wherein at least a portion of the non-linear curve includes a beginning portion slope that is steeper at a beginning of the portion than an end portion slope at an end of the portion; and causing a change of a light source intensity by ramping over a time interval, wherein the light source intensity targets conforming to the non-linear curve for the intensity of the light source.
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17. A system for changing light source intensity, comprising:
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a processor configured to; receive a command intensity for a light source, wherein the light source has a current intensity, wherein the current intensity is associated with an intensity resolution, wherein the command intensity is associated with a command resolution, wherein the intensity resolution is higher than the command resolution, wherein a starting intensity is equal to the current intensity when the command intensity is received, and wherein the light source comprises a LED light source; determine a sequence of at least three steps in the current intensity for the light source, wherein each step of the sequence is used to change the current intensity of the light source from the starting intensity toward the command intensity, wherein each of the at least three steps of the sequence is based at least in part on a result of a scaling operation, and wherein the result of the scaling operation is substantially a constant; and cause a light source intensity change, wherein the sequence of the at least three steps in the current intensity for the light source are added each in turn to the current intensity with a time interval occurring between each of the at least three steps of the sequence; and a memory coupled to the processor and configured to provide instructions to the processor. - View Dependent Claims (18, 19, 20, 21)
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Specification