Apparatus and method for generating high resolution frames for dimming and visibility support in visible light communication
First Claim
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1. For use in a visible light communication (VLC) network, a method for generating high resolution frames for dimming support, the method comprising:
- receiving a required visibility for the high resolution frames;
generating a sequence of patterns in a physical (PHY) layer of a communications device that meets the required visibility, the sequence comprising a first selected quantity of first low resolution frames selected from a set of low resolution frames corresponding to visibility patterns at a first resolution combined with a second selected quantity of second low resolution frames selected from the set, the first low resolution frames comprising a first pattern of a plurality of bits representing a corresponding positive amount of light at a light source and the second low resolution frames comprising a second pattern different than the first pattern of a plurality of bits representing a corresponding positive amount of light at the light source, wherein the first selected quantity of first low resolution frames in combination with the second selected quantity of second low resolution frames satisfies the required visibility; and
transmitting the sequence to achieve the required high resolution frames.
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Abstract
For use in a visible light communication (VLC) network, a method for generating high resolution visibility frames for visibility or dimming support. The method includes determining a required visibility for the high resolution frames. The method also includes generating a pattern that meets the determined required visibility, the pattern having a first quantity of first low resolution frames and a second quantity of second low resolution frames. The method further includes transmitting the pattern to achieve the required high resolution frames.
12 Citations
20 Claims
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1. For use in a visible light communication (VLC) network, a method for generating high resolution frames for dimming support, the method comprising:
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receiving a required visibility for the high resolution frames; generating a sequence of patterns in a physical (PHY) layer of a communications device that meets the required visibility, the sequence comprising a first selected quantity of first low resolution frames selected from a set of low resolution frames corresponding to visibility patterns at a first resolution combined with a second selected quantity of second low resolution frames selected from the set, the first low resolution frames comprising a first pattern of a plurality of bits representing a corresponding positive amount of light at a light source and the second low resolution frames comprising a second pattern different than the first pattern of a plurality of bits representing a corresponding positive amount of light at the light source, wherein the first selected quantity of first low resolution frames in combination with the second selected quantity of second low resolution frames satisfies the required visibility; and transmitting the sequence to achieve the required high resolution frames. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. For use in a visible light communication (VLC) network, a transmitter capable of generating and transmitting high resolution frames for dimming support, the transmitter comprising:
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a controller configured to; receive a required visibility for the high resolution frames, and generate a sequence of patterns in a physical (PHY) layer of a communications device containing the controller that meets the required visibility, the sequence comprising a first quantity of first low resolution frames selected from a set of low resolution frames corresponding to visibility patterns at a first resolution combined with a second quantity of second low resolution frames selected from the set, the first low resolution frames comprising a first pattern of a plurality of bits representing a corresponding positive amount of light at a light source and the second low resolution frames comprising a second pattern different than the first pattern of a plurality of bits representing a corresponding positive amount of light at the light source, wherein the first quantity of first low resolution frames in combination with the second quantity of second low resolution frames satisfies the required visibility; and a light source configured to transmit the sequence to achieve the required high resolution frames. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. For use in visible light communication (VLC), a system for generating high resolution frames for dimming support, the system comprising:
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a transmitter, the transmitter configured to; receive a required visibility for the high resolution frames, generate a sequence of patterns in a physical (PHY) layer of a communications device including the transmitter that meets the required visibility, the sequence comprising a first quantity of first low resolution frames selected from a set of low resolution frames corresponding to visibility patterns at a first resolution combined with a second quantity of second low resolution frames selected from the set, the first low resolution frames comprising a first pattern of a plurality of bits representing a corresponding positive amount of light at a light source and the second low resolution frames comprising a second pattern different than the first pattern of a plurality of bits representing a corresponding positive amount of light at the light source, wherein the first quantity of first low resolution frames in combination with the second quantity of second low resolution frames satisfies the required visibility, and transmit the sequence to achieve the required high resolution frames; and a receiver configured to receive data at the required visibility by adapting the data reception according to the sequence generated at the transmitter. - View Dependent Claims (18, 19, 20)
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Specification