RECEIVING CODED VISIBLE LIGHT IN PRESENCE OF INTERFERENCE
First Claim
1. A coded visible light receiver comprising:
- a sensor for receiving light comprising data modulated into the light according to a coding scheme;
a transform module configured to transform the data into a frequency domain representation comprising a band of a spectrum resulting from said data being modulated into the light according to said coding scheme; and
an interference cancelling module configured to cancel interference occurring in said band by determining that one or more components in said band exceeds a threshold signal strength and cancelling said one or more components in response to said determining.
1 Assignment
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Accused Products
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.
6 Citations
19 Claims
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1. A coded visible light receiver comprising:
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a sensor for receiving light comprising data modulated into the light according to a coding scheme; a transform module configured to transform the data into a frequency domain representation comprising a band of a spectrum resulting from said data being modulated into the light according to said coding scheme; and an interference cancelling module configured to cancel interference occurring in said band by determining that one or more components in said band exceeds a threshold signal strength and cancelling said one or more components in response to said determining. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 17, 18, 19)
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15. A non-transitory computer readable medium storing code for operating a coded visible light receiver, the code configured such that, when executed by a processor, the processor performs operations of:
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in response to a sensor of the coded visible light receiver receiving light comprising data modulated into the light according to a coding scheme, transforming the data into a frequency domain representation comprising a band of a spectrum resulting from said data being modulated into the light according to said coding scheme; and cancelling interference occurring in said band by determining that one or more components in said band exceeds a threshold signal strength and cancelling said one or more components in response to said determining.
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Specification