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Hai LI

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  • Harbin Heilongjiang, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sound direction detection
    • Patent number 8,174,934
    • Issue date May 8, 2012
    • EMPIRE TECHNOLOGY DEVELOPMENT LLC
    • Hai Li
    • G01 - MEASURING TESTING

Patents Applicationslast 30 patents

  • Information Patent Application

    SOUND DIRECTION DETECTION
    • Publication number 20120026837
    • Publication date Feb 2, 2012
    • EMPIRE TECHNOLOGY DEVELOPMENT LLC
    • Hai LI
    • G01 - MEASURING TESTING