Inventor
LIU JUNGTAO
US17 patents
Patents
17 patentsUS10305766B1May 28, 2019
Coexistence-insensitive presence detection
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US10419106B1Sep 17, 2019
Satellite-based content delivery network (CDN) in an extraterrestrial environment
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US10310079B1Jun 4, 2019
Presence detection using wireless signals confirmed with ultrasound and/or audio
AMAZON TECH INC23 citations93
US11271629B1Mar 8, 2022
Human activity and transition detection
AMAZON TECH INC18 citations85
US10674331B1Jun 2, 2020
Indoor location estimation for wireless device
AMAZON TECH INC20 citations85
US10548026B1Jan 28, 2020
Frequency planning and hexagon pattern layouts of linear sub-mesh networks of a wireless mesh network for broadband connectivity
AMAZON TECH INC9 citations83
US10405366B1Sep 3, 2019
Coordinated beamforming
AMAZON TECH INC9 citations83
US10477411B1Nov 12, 2019
Hexagon pattern layouts of linear sub-mesh networks of a wireless mesh network for broadband connectivity
AMAZON TECH INC4 citations73
US10609620B1Mar 31, 2020
Multi-hop power management in a wireless mesh network
AMAZON TECH INC6 citations72
US10219142B2Feb 26, 2019
Neighbor discovery and neighbor selection of mesh network devices in a mesh network
AMAZON TECH INC3 citations71
US11882517B1Jan 23, 2024
Managing duplicate device identifiers for edge devices of client networks that use a radio communication protocol
AMAZON TECH INC2 citations70
US11035951B1Jun 15, 2021
Radar based guidance system perceiving contents of a container
AMAZON TECH INC1 citations56
US12218832B1Feb 4, 2025
Managing and routing payloads for client edge devices that use multiple types of radios
AMAZON TECH INC0 citations51
US11930495B1Mar 12, 2024
Downlink scheduling optimization for edge devices that use a radio communication protocol
AMAZON TECH INC0 citations51
US11522831B1Dec 6, 2022
Increasing edge device address space while complying with a radio communication protocol
AMAZON TECH INC0 citations51
US11438786B1Sep 6, 2022
Bandwidth estimation and management for connected devices
AMAZON TECH INC0 citations51
US12316389B1May 27, 2025
Mitigation of microwave interference
AMAZON TECH INC0 citations48