Invention Grant
- Patent Title: Illuminance and proximity sensor
- Patent Title (中): 照度和接近传感器
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Application No.: US13765321Application Date: 2013-02-12
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Publication No.: US09057644B2Publication Date: 2015-06-16
- Inventor: So Eun Park
- Applicant: So Eun Park
- Applicant Address: KR Bucheon-si
- Assignee: Dongbu HiTek Co., Ltd.
- Current Assignee: Dongbu HiTek Co., Ltd.
- Current Assignee Address: KR Bucheon-si
- Agency: Central California IP Group, P.C.
- Agent Andrew D. Fortney
- Priority: KR10-2012-0127214 20121112
- Main IPC: H01L31/101
- IPC: H01L31/101 ; G01J1/42 ; G01J5/10 ; G01J1/04 ; G01J1/16
Abstract:
An illuminance and proximity sensor includes a first sensing unit that senses infrared light and green light, and forwards a first sensing signal corresponding to a result of the sensing, a second sensing unit that filters visible light, senses the infrared light, and forwards a second sensing signal corresponding to a result of the sensing, and a control unit that produces an illuminance using a first difference value from subtracting the second sensing signal from the first sensing signal, and a proximity using a second difference value from subtracting the first difference value from the second sensing signal.
Public/Granted literature
- US20140131576A1 Illuminance and Proximity Sensor Public/Granted day:2014-05-15
Information query
IPC分类:
