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:
Jul. 07, 2020
Filed:
Nov. 10, 2017
Ricoh Company, Ltd., Tokyo, JP;
Yasuhiro Nihei, Kanagawa, JP;
Toshishige Fujii, Kanagawa, JP;
Takeshi Ogawa, Kanagawa, JP;
Hiroaki Tanaka, Tokyo, JP;
Shu Takahashi, Kanagawa, JP;
Yoichi Ichikawa, Kanagawa, JP;
Masahiro Itoh, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
An distance measurement apparatus includes a light source to emit irradiation light, circuitry to output, to the light source, a first current that changes in accordance of light-emission timing information defining at least turn-on timing of the light source, and a second current that does not change in accordance of the light-emission timing information, a sensor to detect reflection light reflected from an object irradiated with the irradiation light emitted from the light source. The circuitry calculates a distance to the object based on a detection amount of the reflection light detected by the sensor.