The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 13, 2020
Filed:
Jul. 13, 2018
Hyundai Motor Company, Seoul, KR;
Kia Motors Corporation, Seoul, KR;
Accendo Motion Research Co., Ltd., Jeollabuk-do, KR;
Jong Min Park, Hwaseong-si, KR;
Nak Kyoung Kong, Seongnam-si, KR;
Seung Hyeok Chang, Suwon-si, KR;
Ki Hong Lee, Seoul, KR;
Nam Joon Yoo, Jeollabuk-do, KR;
Yong Pyo Hong, Jeollabuk-do, KR;
Hyundai Motor Company, Seoul, KR;
KIA Motors Corporation, Seoul, KR;
Accendo Motion Research Co., Ltd., Jeollabuk-do, KR;
Abstract
The present disclosure provides an optical sensor having constant sensitivity regardless of changes in temperature. The optical sensor may include a light emitting device configured to emit light; a light receiving device configured to receive the light emitted from the light emitting device, and to output current based on an intensity of the light; a temperature sensor coupled with the light emitting device, and having electrical resistance varying with temperature; and a microcontroller including a first channel for supplying first current directly to the light emitting device, a second channel for supplying second current to the light emitting device via the temperature sensor, and a third channel for receiving the current output from the light receiving device.