Invention Grant
- Patent Title: Proximity sensor detecting metallic and non-metallic objects
- Patent Title (中): 接近传感器检测金属和非金属物体
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Application No.: US14168506Application Date: 2014-01-30
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Publication No.: US09274075B2Publication Date: 2016-03-01
- Inventor: Bingnan Wang , Jiang Long , Koon Hoo Teo
- Applicant: Mitsubishi Electric Research Laboratories, Inc.
- Applicant Address: US MA Cambridge
- Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee: Mitsubishi Electric Research Laboratories, Inc.
- Current Assignee Address: US MA Cambridge
- Agent Dirk Brinkman; Gene Vinokur
- Main IPC: G01V3/10
- IPC: G01V3/10 ; G01N27/22 ; H03K17/95 ; H03K17/955
Abstract:
A method determines a type of an object in a proximity to a resonant structure having a resonant frequency as a metallic object if the object changes a phase of a power signal reflected by the resonant structure at frequencies below and above the resonant frequency. Otherwise, the method determines the type of the object as a non-metallic object.
Public/Granted literature
- US20150212033A1 Proximity Sensor Detecting Metallic and Non-Metallic Objects Public/Granted day:2015-07-30
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