Chunlei Dai

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for detecting wearing state of earphones, and ear...
- Patent number 11,985,470
- Issue date May 14, 2024
- Robert Bosch GmbH
- Chunlei Dai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Method and Device for Detecting Wearing State of Earphone, and Earp...
- Publication number 20230147079
- Publication date May 11, 2023
- ROBERT BOSCH GmbH
- Tongtong Jiao
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Method and Device for Detecting Wearing State of Earphones, and Ear...
- Publication number 20220377450
- Publication date Nov 24, 2022
- ROBERT BOSCH GmbH
- Chunlei Dai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE