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

Claim 5:
6. 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 frequency-domain channel response based on a wireless signal transmitted through a space, the wireless signal being formatted according to a wireless communication standard;
generating a time-domain channel response based on the frequency-domain channel response;
generating a filtered time-domain channel response based on a constraint applied to the time-domain channel response, 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 reconstructed frequency-domain channel response based on the filtered time-domain channel response; and
determining a state of the space based on the reconstructed frequency-domain channel responses.