Receiving coded visible light in presence of interference
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United States of America Patent
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Oct 22, 2019
Grant Date -
Feb 8, 2018
app pub date -
Oct 19, 2017
filing date -
Apr 19, 2013
priority date (Note) -
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Abstract
A coded visible light receiver comprises: a sensor, a transform module, and an interference cancelling module. The sensor receives light comprising data modulated into the light according to a coding scheme. The transform module is configured to transform the data into a frequency domain representation, representing a band of a spectrum resulting from the data being modulated into the light according to the coding scheme. The interference cancelling module is configured to cancel interference occurring in the band of the data, by determining one or more components in the band that exceed a threshold signal strength and cancelling those components.
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