Assignee
ZHEJIANG DEQING ZHILU NAVIGATION TECH CO LTD
CN·3 granted patents·8 citations·filing 2022–2023
Top patents by PatentIndex Score
3 records- 0189US11686809B1Acoustic positioning system and method for smartphone and wearable device, and terminalZHEJIANG DEQING ZHILU NAVIGATION TECH CO LTD·Filed 2022·Granted Jun 27, 2023·3 cites·6 claims
- 0287US11808848B1Method, system and terminal for wide-area acoustic indoor positioning based on RF enhancementZHEJIANG DEQING ZHILU NAVIGATION TECH CO LTD·Filed 2023·Granted Nov 7, 2023·5 cites·6 claims
- 0344US11852721B1Method for locating and finding items based on acoustic signalZHEJIANG DEQING ZHILU NAVIGATION TECH CO LTD·Filed 2023·Granted Dec 26, 2023·0 cites·1 claims
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