Changting Xu

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Santa Clara, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Segmented transducers for acoustic applications
- Patent number 11,716,566
- Issue date Aug 1, 2023
- QUALCOMM Incorporated
- Bernard Herrera
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Ultrasonic protective film detection and ultrasonic sensor calibration
- Patent number 11,335,114
- Issue date May 17, 2022
- QUALCOMM Incorporated
- Changting Xu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Temperature and ultrasonic sensor fusion for biometric sensing
- Patent number 11,182,026
- Issue date Nov 23, 2021
- QUALCOMM Incorporated
- Yue Liang
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Liveness sensing and authentication with an ultrasonic sensor system
- Patent number 11,062,010
- Issue date Jul 13, 2021
- QUALCOMM Incorporated
- Soon Joon Yoon
- G01 - MEASURING TESTING
Information Patent Grant
Anti-spoofing devices and methods involving acoustic shear waves
- Patent number 10,956,709
- Issue date Mar 23, 2021
- QUALCOMM Incorporated
- Javier Frydman
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Stylus-tracking piezoelectric sensor
- Patent number 10,831,290
- Issue date Nov 10, 2020
- QUALCOMM Incorporated
- Hrishikesh Vijaykumar Panchawagh
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
SEGMENTED TRANSDUCERS FOR ACOUSTIC APPLICATIONS
- Publication number 20220312115
- Publication date Sep 29, 2022
- QUALCOMM Incorporated
- Bernard HERRERA
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ULTRASONIC PROTECTIVE FILM DETECTION AND ULTRASONIC SENSOR CALIBRATION
- Publication number 20220058357
- Publication date Feb 24, 2022
- QUALCOMM Incorporated
- Changting XU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
TEMPERATURE AND ULTRASONIC SENSOR FUSION FOR BIOMETRIC SENSING
- Publication number 20210325996
- Publication date Oct 21, 2021
- QUALCOMM Incorporated
- Yue LIANG
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ANTI-SPOOFING DETECTION USING SINGLE ELEMENT TRANSCEIVER
- Publication number 20210150239
- Publication date May 20, 2021
- QUALCOMM Incorporated
- Soon Joon Yoon
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
LIVENESS SENSING AND AUTHENTICATION WITH AN ULTRASONIC SENSOR SYSTEM
- Publication number 20210117519
- Publication date Apr 22, 2021
- QUALCOMM Incorporated
- Soon Joon Yoon
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
STYLUS-TRACKING PIEZOELECTRIC SENSOR
- Publication number 20200272255
- Publication date Aug 27, 2020
- QUALCOMM Incorporated
- Hrishikesh Vijaykumar Panchawagh
- G06 - COMPUTING CALCULATING COUNTING