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. 10, 2017
Filed:
May. 24, 2016
Masaya Kawarada, Kanagawa, JP;
Nobuyuki Satoh, Kanagawa, JP;
Kenji Morita, Tokyo, JP;
Yuichi Sakurada, Tokyo, JP;
Tomohiro Sasa, Kanagawa, JP;
Daisaku Horikawa, Kanagawa, JP;
Masaya Kawarada, Kanagawa, JP;
Nobuyuki Satoh, Kanagawa, JP;
Kenji Morita, Tokyo, JP;
Yuichi Sakurada, Tokyo, JP;
Tomohiro Sasa, Kanagawa, JP;
Daisaku Horikawa, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A distance measuring device includes: an imaging unit that captures a test pattern image including a pair of first markers and a second marker that is formed under a condition different from a condition applied to the first markers; a position detecting unit that detects a position of each of the pair of first markers and the second marker in a captured image captured by the imaging unit; a ratio calculating unit that calculates a ratio of a distance between the pair of the first markers in the captured image and an actual distance between the pair of the first markers; and an actual distance calculating unit that calculates an actual distance between one of the first markers as the pair and the second marker by multiplying a distance between the one of the first markers as the pair and the second marker in the captured image by the ratio.