US 11,913,970 B2
Wireless motion detection using multiband filters
Seyedehsan Bateni, Montreal (CA); Negar Ghourchian, Montreal (CA); Michel Allegue Martinez, Terrebonee (CA); and David Grant, Santa Rosa Valley, CA (US)
Assigned to Aerial Technologies Inc., Montreal (CA)
Filed by Aerial Technologies Inc., Montreal (CA)
Filed on Feb. 21, 2020, as Appl. No. 16/798,148.
Claims priority of provisional application 62/809,436, filed on Feb. 22, 2019.
Prior Publication US 2020/0292572 A1, Sep. 17, 2020
Int. Cl. G01P 13/00 (2006.01); G08B 13/00 (2006.01); H04W 88/02 (2009.01); H04W 84/12 (2009.01)
CPC G01P 13/00 (2013.01) [G08B 13/00 (2013.01); H04W 84/12 (2013.01); H04W 88/02 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for filtering out signals, the method comprising:
extracting with an agent channel state information from a chipset operating according to a defined wireless standard of a wireless access point associated with an active sensing area where the wireless access point receives wireless signals via a wireless link according to the defined wireless standard from a wireless device associated with the active sensing area;
establishing a channel matrix based upon the extracted channel state information comprising channel state information of different frequency sub-bands of the wireless link according to the defined wireless standard in a first dimension of the channel matrix and different samples or packets in a second dimension of the channel matrix;
filtering with the agent the established channel matrix by applying a low-pass filter and a notch filter to the established channel matrix wherein the low-pass filter filters out a predetermined type of unwanted high frequency signals from the established channel matrix and the notch filter filters out a predetermined type of unwanted low frequency signals from the established channel matrix;
establishing in dependence upon the filtered established channel matrix and a plurality of profiles a profile of the plurality of profiles to associate with the sensing area where each profile of the plurality of profiles comprises a channel state information profile associated with one of an activity, an object, an individual and a biometric associated with or within the sensing area.