Zhen LIU

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Qingdao, Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Circuit for alternating current and direct current leakage detection
- Patent number 11,977,130
- Issue date May 7, 2024
- QINGDAO TOPSCOMM COMMUNICATION CO., LTD
- Chengwen Yan
- G01 - MEASURING TESTING
Information Patent Grant
Fault arc signal detection method using convolutional neural network
- Patent number 11,860,216
- Issue date Jan 2, 2024
- QINGDAO TOPSCOMM COMMUNICATION CO., LTD
- Zhen Liu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
AC/DC leakage detection method
- Patent number 11,828,815
- Issue date Nov 28, 2023
- QINGDAO TOPSCOMM COMMUNICATION CO., LTD
- Zhen Liu
- G01 - MEASURING TESTING
Information Patent Grant
Vector analysis calculation-based arc crosstalk signal identificati...
- Patent number 11,733,286
- Issue date Aug 22, 2023
- QINGDAO TOPSCOMM COMMUNICATION CO., LTD
- Yue Ma
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
CIRCUIT FOR ALTERNATING CURRENT AND DIRECT CURRENT LEAKAGE DETECTION
- Publication number 20240085495
- Publication date Mar 14, 2024
- QINGDAO TOPSCOMM COMMUNICATION CO., LTD
- Chengwen YAN
- G01 - MEASURING TESTING
Information Patent Application
FAULT ARC SIGNAL DETECTION METHOD USING CONVOLUTIONAL NEURAL NETWORK
- Publication number 20230160942
- Publication date May 25, 2023
- QINGDAO TOPSCOMM COMMUNICATION CO., LTD
- Zhen LIU
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
VECTOR ANALYSIS CALCULATION-BASED ARC CROSSTALK SIGNAL IDENTIFICATI...
- Publication number 20230022120
- Publication date Jan 26, 2023
- QINGDAO TOPSCOMM COMMUNICATION CO., LTD
- Yue MA
- G01 - MEASURING TESTING
Information Patent Application
AC/DC LEAKAGE DETECTION METHOD
- Publication number 20220413062
- Publication date Dec 29, 2022
- QINGDAO TOPSCOMM COMMUNICATION CO., LTD
- Zhen LIU
- G01 - MEASURING TESTING
Information Patent Application
RESIDUAL CURRENT DETECTION METHOD BASED ON MAGNETIC CORE WORKING ST...
- Publication number 20220373579
- Publication date Nov 24, 2022
- QINGDAO TOPSCOMM COMMUNICATION CO., LTD
- Zean JIANG
- G01 - MEASURING TESTING