US 11,668,808 B2
Methods and apparatus for multimodal audience detection and identification
Marko Usaj, Izola (SI); Andrej Barbis, Ilirska Bistrica (SI); Joze Arh, Rakek (SI); and John Stavropoulos, Edison, NJ (US)
Assigned to The Nielsen Company (US), LLC, New York, NY (US)
Filed by The Nielsen Company (US), LLC, New York, NY (US)
Filed on Aug. 28, 2019, as Appl. No. 16/554,376.
Prior Publication US 2021/0063556 A1, Mar. 4, 2021
Int. Cl. G01S 13/04 (2006.01); G01S 7/41 (2006.01); H04B 17/318 (2015.01); G01S 11/06 (2006.01); H04N 21/41 (2011.01); H04W 4/80 (2018.01); H04W 64/00 (2009.01)
CPC G01S 13/04 (2013.01) [G01S 7/412 (2013.01); G01S 11/06 (2013.01); H04B 17/318 (2015.01); H04N 21/4126 (2013.01); H04W 4/80 (2018.02); H04W 64/003 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A proximity detection apparatus, the apparatus comprising:
a signal strength value selector to select a portion of a set of signal strength values associated with advertising packets from a device associated with a user, the advertising packets captured by a multi-axis receiver on a plurality of different signal polarizations, the multi-axis receiver to capture first ones of the advertising packets along a first axis polarity, second ones of the advertising packets along a second axis polarity transverse relative to the first axis polarity, and third ones of the advertising packets along a third axis polarity, the third axis polarity is transverse relative to the first axis polarity and the second axis polarity;
a signal strength calculator to calculate a first representative signal strength value based on the selected portion of signal strength values; and
a presence determiner to determine a presence of the user based on whether the first representative signal strength value satisfies a threshold.