Inventor
RUSSELL SPENCER
US9 patents
Patents
9 patentsUS11762052B1Sep 19, 2023
Sound source localization
AMAZON TECH INC7 citations80
US11564036B1Jan 24, 2023
Presence detection using ultrasonic signals with concurrent audio playback
AMAZON TECH INC5 citations73
US12072413B1Aug 27, 2024
Method for wall detection and localization
AMAZON TECH INC1 citations60
US12003948B1Jun 4, 2024
Multi-device localization
AMAZON TECH INC1 citations59
US11921187B1Mar 5, 2024
Monitoring non-stationary object distance using ultrasonic signals
AMAZON TECH INC1 citations59
US12452621B1Oct 21, 2025
Multi-device localization and ranging
AMAZON TECH INC0 citations50
US12143789B1Nov 12, 2024
User localization
AMAZON TECH INC0 citations50
US12276741B1Apr 15, 2025
Direction of arrival estimation
AMAZON TECH INC0 citations48
US12058509B1Aug 6, 2024
Multi-device localization
AMAZON TECH INC0 citations45