Ultrasonic Transmission for Presence Detection | Patent Publication Number 20220066008

US 20220066008 A1
Patent Number-
Application Number17460708
Filled DateAug 30, 2021
Priority DateAug 31, 2020
Publication DateMar 3, 2022
Original Assignee
Current AssigneeSonos
Inventor/ApplicantsRichard Bannon
Jonathan Herbst
Daniel Jones
Jake Harwood
Henry Sia
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