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. 19, 2021
Filed:
Aug. 02, 2018
Ricoh Company, Ltd., Tokyo, JP;
Kohji Sakai, Tokyo, JP;
Toshishige Fujii, Kanagawa, JP;
Tadashi Nakamura, Kanagawa, JP;
Takeshi Ueda, Tokyo, JP;
Kohei Ushio, Kanagawa, JP;
Yuuta Yoshino, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
First and second types of object detectors, a sensing device, and a mobile apparatus. The first and second types of object detectors include a light source configured to emit light, photoreceptor configured to receive the light reflected by an object, and a binarizing circuit configured to binarize a signal sent from the photoreceptor at a threshold V. In the first and second types of object detectors, object detection processes are performed in a same direction until a high-level signal is output M times from the signal binarized by the binarizing circuit. In the first type of object detector, a value of the M is determined based on an incidence of shot noise where peak intensity exceeds the threshold Vin the photoreceptor. In the second type of object detector, a threshold Vis set based on a value of the M.