Patent ID: 11902901
Assignee: ROKU, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 14:
15. A non-transitory computer-readable medium having instructions stored thereon that, when executed by at least one computing device, cause the at least one computing device to perform operations comprising:
varying, during a collection routine, a respective signal strength and a respective time of one or more of a plurality of transmitters;
receiving results of the collection routine in a form of raw data from a plurality of sensors in response to said varying;
generating a three-dimensional composite map of signal strength for signals within a three-dimensional space based on the raw data, wherein the three-dimensional composite map includes a wi-fi signature formed by received signals including ambient sound recorded over a period of time; and
determining, by a neural network with back propagation, particular poses associated with sleeping of a user based on the three-dimensional composite map of signal strength,
wherein the neural network includes an input layer having nodes corresponding to the wi-fi signature formed by the received signals including the ambient sound related to sleeping of the user, and an output layer including a first node representing that the user is sleeping and a second node representing the user is not sleeping, wherein the neural network determines the user is sleeping after determining a value of the first node is greater than a value of the second node based on back propagation of the neural network.