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:
Sep. 15, 2020
Filed:
Nov. 09, 2017
Ricoh Company, Ltd., Tokyo, JP;
Yoichi Ichikawa, Kanagawa, JP;
Hiroaki Tanaka, Tokyo, JP;
Shu Takahashi, Kanagawa, JP;
Masahiro Itoh, Kanagawa, JP;
Yasuhiro Nihei, Kanagawa, JP;
Takeshi Ogawa, Kanagawa, JP;
Toshishige Fujii, Kanagawa, JP;
RICOH COMPANY, LTD, Tokyo, JP;
Abstract
A distance-measuring apparatus, a mobile object, a robot, a three-dimensional measuring device, a surveillance camera, and a distance-measuring method. The distance-measuring apparatus, a mobile object includes a light source to emit light, an imaging element to receive and photoelectrically convert the light into a plurality of electrical signals, and to obtain the electrical signals upon being sorted into a plurality of phase signals, and a computing unit to calculate distance to the object based on the phase signals. In the distance-measuring apparatus, a period of time during which the imaging element obtains the phase signals is different from a light emitting period of the light source in length. The distance-measuring method includes determining whether or not aliasing is present based on a light emitting period of the light source, a period of time during which the plurality of phase signals are obtained, and a result of the calculating.