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公开(公告)号：US20190047340A1
公开(公告)日：2019-02-14
申请号：US15700198
申请日：2017-09-11
申请人： Lijun CHEN , Yonggang LIU
发明人： Lijun CHEN , Yonggang LIU
CPC分类号： B60C27/063 , B60C27/06 , B60C27/10 , B60C27/12 , B60C27/14 , E05B15/0046 , E05B15/04 , E05B15/1635 , E05B2015/0413 , E05B2015/1664
摘要： This invention discloses an automatic locking device for snow anti-skid chains. Wherein the snow anti-skid chain comprises a ratchet wheel lock catch and a anti-skid chain; the anti-skid chain is respectively fixed at the buckle and the outer part of the housing aforesaid, and extends towards three directions. The ratchet wheel lock catch is used to make the anti-skid chain to attach to automobile tires firmly and is controlled by pressing two buttons on its lower side, which is different from existing operational actions of braking off and twisting. The pressing action is simple and available for one hand operation. The overall structure is simple and reliable, conforming to use habits of control actions by users.
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公开(公告)号：US20210067871A1
公开(公告)日：2021-03-04
申请号：US16688877
申请日：2019-11-19
申请人： Lijun CHEN
发明人： Lijun CHEN
摘要： A method and device for positioning a sound source by using a fisheye lens. The method is used for positioning a sound source for an incident straight line or an incidence angle of a sound wave in conjunction with a fisheye lens. The method and device for positioning the sound source by using the fisheye lens as provided by the present invention have the following advantages, that include, but are not limited to the followings: the method and device for positioning the sound source by using the fisheye lens as provided by the present invention make use of the characteristics of the fisheye lens to realize angular positioning instead of positional positioning.
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