Patent ID: 9735868
Date: 2017-08-15
CPC Classifications: H04B

Claim:
1. A method of deriving an identifier encoded in a visible light communication (VLC) signal, comprising: capturing, via an image sensor of a receiving device, a VLC signal, the VLC signal comprising multiple instances of the identifier, the identifier identifying a VLC-enabled light source; extracting, at the receiving device, at least a first pattern of bits and a second pattern of bits, the first pattern of bits comprising a portion of a first instance of the identifier, and the second pattern of bits comprising a portion of a second instance of the identifier; comparing, at the receiving device, the first pattern of bits and the second pattern of bits to different portions of a plurality of identifiers; identifying, at the receiving device, based at least in part on comparing the first pattern of bits to different portions of a plurality of identifiers, a first subset of the plurality of identifiers as candidate matches to the identifier encoded in the VLC signal; and identifying, at the receiving device, based at least in part on comparing the second pattern of bits to different portions of the subset of the plurality of identifiers, a second subset of the plurality of identifiers as candidate matches to the identifier encoded in the VLC signal.