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:
Nov. 19, 2024
Filed:
Jun. 12, 2019
The Nippon Signal Co., Ltd., Tokyo, JP;
THE NIPPON SIGNAL CO., LTD., Tokyo, JP;
Abstract
A ranging method and a range finder allow reliable measurement of the distance to a target object even when the target object has a very low reflectivity and/or under conditions with disturbances. The range finder includes: a light receiving element configured to receive a reflected component of light emitted to a target object; a first detection unit and a second detection unit configured to perform two different types of detections with different detection gains; and a distance/light-intensity calculation processing unit serves as a calculation unit for calculating a measured distance based on a combination of result patterns of the detections performed by the first and second detection units. The range finder determines a distance by causing each of the first and second detection units performs at least two detections with a time interval per a single light emission.