Intensity changing with reduced flicker for digitally-controlled lighting
First Claim
1. A method for changing light source intensity, comprising:
- receiving a command intensity for a light source, wherein the light source has a current intensity, and wherein a starting intensity is equal to the current intensity when the command is received;
determining a sequence of at least three steps in intensity for the light source, wherein each step of the sequence is used to change the light source intensity from the starting intensity toward the command intensity, and wherein each of the at least three steps of the sequence are progressively smaller; and
causing a light source intensity change, wherein the sequence of the at least three steps in 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.
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Accused Products
Abstract
Changing light source intensity is disclosed. A command intensity is received for a light source, wherein the light source has a current intensity, and wherein a starting intensity is equal to the current intensity when the command is received. A sequence of at least three steps in intensity for the light source is determined, wherein each step of the sequence is used to change the light source intensity from the starting intensity toward the command intensity, and wherein each of the at least three steps of the sequence are progressively smaller. A light source intensity change is caused, wherein the sequence of the at least three steps in 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.
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Citations
29 Claims
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1. 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 a starting intensity is equal to the current intensity when the command is received; determining a sequence of at least three steps in intensity for the light source, wherein each step of the sequence is used to change the light source intensity from the starting intensity toward the command intensity, and wherein each of the at least three steps of the sequence are progressively smaller; and causing a light source intensity change, wherein the sequence of the at least three steps in 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A computer program product for changing light source intensity, the computer program product being embodied in a computer readable medium 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 a starting intensity is equal to the current intensity when the command is received; determining a sequence of at least three steps in intensity for the light source, wherein each step of the sequence is used to change the light source intensity from the starting intensity toward the command intensity, and wherein each of the at least three steps of the sequence are progressively smaller; and causing a light source intensity change, wherein the sequence of the at least three steps in 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.
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14. A system for changing light source intensity, comprising:
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a processor; and a memory coupled with the processor, wherein the memory is configured to provide the processor with instructions which when executed cause the processor to; receive a command intensity for a light source, wherein the light source has a current intensity, and wherein a starting intensity is equal to the current intensity when the command is received; determine a sequence of at least three steps in intensity for the light source, wherein each step of the sequence is used to change the light source intensity from the starting intensity toward the command intensity, and wherein each of the at least three steps of the sequence are progressively smaller; and cause a light source intensity change, wherein the sequence of the at least three steps in 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.
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15. A method for changing light source intensity, comprising:
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receiving a command intensity for the light source, wherein the light source has a current intensity, and wherein a starting intensity is equal to the current intensity when the command is received; determining a sequence of at least three steps in intensity for the light source, wherein each step of the sequence is used to change the light source intensity from the starting intensity toward the command intensity; and causing a light source intensity change, wherein the sequence of the at least three steps in 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, wherein the time intervals between each of the at least three steps are progressively longer. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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16. A method as in 15, wherein the at least three steps are equal steps in intensity.
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28. A computer program product for changing light source intensity, the computer program product being embodied in a computer readable medium and comprising computer instructions for:
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receiving a command intensity for the light source, wherein the light source has a current intensity, and wherein a starting intensity is equal to the current intensity when the command is received; determining a sequence of at least three steps in intensity for the light source, wherein each step of the sequence is used to change the light source intensity from the starting intensity toward the command intensity; and causing a light source intensity change, wherein the sequence of the at least three steps in 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, wherein the time intervals between each of the at least three steps are progressively longer.
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29. A system for changing light source intensity, comprising:
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a processor; and a memory coupled with the processor, wherein the memory is configured to provide the processor with instructions which when executed cause the processor to; receive a command intensity for the light source, wherein the light source has a current intensity, and wherein a starting intensity is equal to the current intensity when the command is received; determine a sequence of at least three steps in intensity for the light source, wherein each step of the sequence is used to change the light source intensity from the starting intensity toward the command intensity; and cause a light source intensity change, wherein the sequence of the at least three steps in 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, wherein the time intervals between each of the at least three steps are progressively longer.
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Specification