US 12,255,695 B2
Systems and methods for state detection via wireless radios
Niels van Erven, Agoura Hills, CA (US); and Connor Riley Northend, Goleta, CA (US)
Assigned to Sonos, Inc., Goleta, CA (US)
Filed by Sonos, Inc., Santa Barbara, CA (US)
Filed on Jul. 26, 2023, as Appl. No. 18/359,782.
Application 18/359,782 is a continuation of application No. 18/065,562, filed on Dec. 13, 2022, granted, now 11,764,885.
Application 18/065,562 is a continuation of application No. 17/204,793, filed on Mar. 17, 2021, granted, now 11,533,116, issued on Dec. 20, 2022.
Claims priority of provisional application 62/992,027, filed on Mar. 19, 2020.
Prior Publication US 2024/0031043 A1, Jan. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G01S 5/18 (2006.01); H04B 17/27 (2015.01); H04B 17/318 (2015.01); H04B 17/391 (2015.01); H04W 16/22 (2009.01)
CPC H04B 17/318 (2015.01) [H04B 17/27 (2015.01); H04W 16/225 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A playback device comprising:
a wireless network interface configured to facilitate communication over at least one data network;
one or more processors;
one or more non-transitory computer-readable media; and
program instructions stored on the one or more non-transitory computer-readable media that are executable by the one or more processors such that the playback device is configured to:
join a playback group comprising a plurality of playback devices including the playback device;
during synchronous playback of media content by the plurality of playback devices, obtain wireless signal data for signals transmitted along at least one signal path between at least some of the plurality of playback devices communicating in a wireless channel;
based on the wireless signal data, determine channel state information indicative of a state of the wireless channel;
detect, in a region between the plurality of playback devices, at least one of a presence or absence of one or more individuals, wherein the detection is based on the determined channel state information; and
based on the detected at least one of the presence or the absence of one or more individuals,
modify playback of the media content.