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:
Aug. 10, 2021
Filed:
Oct. 01, 2019
Tatsuya Ozaki, Kanagawa, JP;
Tadaaki Oyama, Kanagawa, JP;
Tomohiro Sasa, Tokyo, JP;
Hiroki Shirado, Kanagawa, JP;
Kohsuke Nambara, Kanagawa, JP;
Masamoto Nakazawa, Kanagawa, JP;
Tatsuya Ozaki, Kanagawa, JP;
Tadaaki Oyama, Kanagawa, JP;
Tomohiro Sasa, Tokyo, JP;
Hiroki Shirado, Kanagawa, JP;
Kohsuke Nambara, Kanagawa, JP;
Masamoto Nakazawa, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A reading device includes: a light source that irradiates a subject with scanning light; a light receiving section that receives reflection light from the subject; and circuitry to: control the light source to switch on and off of the scanning light; control the light receiver to receive the reflection light from the subject for a predetermined acquisition time at a predetermined acquisition interval so as to acquire data; and calculate a difference between the data acquired while the scanning light is switched on and the data acquired while the scanning light is switched off. The predetermined acquisition time and the predetermined acquisition interval are set such that the acquisition time or a total time of the acquisition time and the acquisition interval become an integer multiple of a fluctuation cycle of a fluctuation factor.