发明名称 Ultrasonic/Electromagnetic non-Contact Buttons/Switches for Elevators
摘要 A method of providing non-contact data selection, comprising the steps of providing at least one data selection, transmitting at least one signal in proximity to the at least one data selection, altering the path of the at least one transmitted signal through interaction with a selection device, detecting at least one altered signal, and determining selection of the selection device from the at least one altered signal.
申请公布号 US2008084382(A1) 申请公布日期 2008.04.10
申请号 US20040590922 申请日期 2004.02.27
申请人 OH JAE-HYUK;VACCHIOTTI ALBERTO;MILTON BENOIT JOHN M;PENG PEI-YUAN;HOOTSMANS NORBEIT A M 发明人 OH JAE-HYUK;VACCHIOTTI ALBERTO;MILTON BENOIT JOHN M.;PENG PEI-YUAN;HOOTSMANS NORBEIT A.M.
分类号 G09G5/00 主分类号 G09G5/00
代理机构 代理人
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