DATA TRANSMISSION WITH ROOM ILLUMINATIONS HAVING LIGHT EMITTING DIODES
First Claim
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1. A method for transmitting data by means of a plurality of light emitting diodes, comprising the steps of:
- transmitting the data by means of modulation of the intensity of the light emitting diodes;
grouping the light emitting diodes into at least two groups;
modulating the light emitting diodes of each group; and
tuning the modulations of the groups to one another such that the data are encoded according to the modulations.
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Abstract
Lamps having light emitting diodes configured for data transmission require the high-frequency circuit of higher power. In order to simplify the required electronics, the light emitting diodes are divided into groups and the groups are modulated differently. Due to the multilevel modulation, the symbol rate can be reduced with the data rate remaining the same, thus reducing the switching rate and the circuitry complexity.
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Citations
20 Claims
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1. A method for transmitting data by means of a plurality of light emitting diodes, comprising the steps of:
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transmitting the data by means of modulation of the intensity of the light emitting diodes; grouping the light emitting diodes into at least two groups; modulating the light emitting diodes of each group; and tuning the modulations of the groups to one another such that the data are encoded according to the modulations. - View Dependent Claims (2, 3, 4, 5, 6, 12, 13, 14, 15)
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7. An arrangement for transmitting data comprising a plurality of light emitting diodes, configured such that the data is transmitted by means of modulation of the intensity of the light emitting diodes, wherein
the light emitting diodes are grouped together into at least two groups; -
the light emitting diodes of each group are modulated; and the modulations of the groups are tuned to one another such that the data is encoded according to the modulations. - View Dependent Claims (8, 9, 10, 11, 16, 17, 18)
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19. An arrangement for transmitting data comprising:
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a plurality of light emitting diodes, wherein the light emitting diodes are grouped together into at least two groups; the light emitting diodes of each group are modulated; and the modulations of the groups are tuned to one another such that the data is encoded. - View Dependent Claims (20)
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Specification