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:
May. 17, 2022
Filed:
Nov. 20, 2019
Suguru Sangu, Kanagawa, JP;
Tatsuya Shimokawa, Osaka, JP;
Shu Tanaka, Osaka, JP;
Shuichi Suzuki, Kanagawa, JP;
Suguru Sangu, Kanagawa, JP;
Tatsuya Shimokawa, Osaka, JP;
Shu Tanaka, Osaka, JP;
Shuichi Suzuki, Kanagawa, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
An optical device includes a light source that emits light to irradiate an object, a light emission driver that drives the light source to emit light at a predetermined light emission period, a position detector that outputs a detection signal corresponding to reflected light that is the light reflected by the object, and a signal extractor that extracts, from the detection signal, a signal with a period corresponding to the light emission period by using a reference signal with a period corresponding to the light emission period, and outputs the extracted signal.