Patent ID: 9429647
Filing Date: 2016-08-30
CPC Classification: G01S,H04K,H04L

Claim Text:
1. A non-transitory computer readable medium comprising instructions which, when executed by one or more hardware processors, causes performance of operations comprising: determining, for each of a plurality of frequency bins in a Fourier Transform sample, a corresponding signal strength, the Fourier Transform sample corresponding to a wireless signal as detected at a first time period; identifying a first frequency bin, from the plurality of frequency bins, with a first signal strength, the first signal strength being a highest signal strength in the signal strengths corresponding to each of the plurality of frequency bins; determining a decrease in signal strength between (a) the first signal strength corresponding to the first bin and (b) a second signal strength corresponding to a second bin in the plurality of bins; and classifying the Fourier Transform sample based