Patent ID: 11962437
Assignee: COGNITIVE SYSTEMS CORP.
Field: Measurement (Instruments)
Classification: CPC H  G | IPC G  H

Claim 15:
16. A device comprising:
one or more processors;
memory storing instructions that are operable when executed by the one or more processors to perform operations comprising:
obtaining a set of frequency-domain channel responses based on a set of wireless signals transmitted through a space, each of the frequency-domain channel responses corresponding to a respective wireless signal of the set of wireless signals, the set of wireless signals being formatted according to a wireless communication standard;
generating a set of time-domain channel responses based on the set of frequency-domain channel responses;
generating a set of filtered time-domain channel responses based on a constraint applied to each time-domain channel response of the set of time-domain channel responses, wherein the constraint is indicative of a maximum delay with which a pulse can reach a receiving wireless communication device, the constraint being determined by a maximum attenuation the pulse can experience in the space and be received by the receiving wireless communication device;
generating a set of reconstructed frequency-domain channel responses based on the set of filtered time-domain channel responses; and
detecting motion of an object in the space based on the set of reconstructed frequency-domain channel responses.