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. 27, 2018
Filed:
Jul. 27, 2016
Optex Co., Ltd., Shiga, JP;
Masashi Iwasawa, Shiga, JP;
OPTEX CO., LTD., Shiga, JP;
Abstract
In a laser range finder, each reflected light reflected by at least one object of pulsed laser light emitted by a light emitting element reaches a light receiving element, and distance information to the at least one object is acquired based on an amount of time from a light emission starting time for the pulsed laser light to an output starting time from the light receiving element. An erroneous detection reducing circuit for the laser range finder includes: a comparator receiving as inputs a threshold and a light-reception output from the light receiving element; a time measuring section measuring time elapsed since the light emission starting time for the pulsed laser light; and a setting changing section changing either one or both of the threshold and an amplification factor of the comparator for the light-reception output in accordance with a time measurement value obtained by the time measuring section.