Yuzhou Liu

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Mountain View, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Controlling sensitivity of presence detection using ultrasonic signals
- Patent number 11,982,737
- Issue date May 14, 2024
- Amazon Technologies, Inc.
- Yuzhou Liu
- G01 - MEASURING TESTING
Information Patent Grant
Systems and methods for noise reduction
- Patent number 11,727,926
- Issue date Aug 15, 2023
- Amazon Technologies, Inc.
- Yuzhou Liu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Presence detection using ultrasonic signals with concurrent audio p...
- Patent number 11,564,036
- Issue date Jan 24, 2023
- Amazon Technologies, Inc.
- Krishna Kamath Koteshwara
- G10 - MUSICAL INSTRUMENTS ACOUSTICS