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:
Jun. 09, 2020
Filed:
Dec. 17, 2018
Optical concentration measuring device and control method for optical concentration measuring device
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Yuji Goda, Tokyo, JP;
Asahi Kasei Microdevices Corporation, Tokyo, JP;
Abstract
An optical concentration measuring device capable of power saving and lifespan extension of a light source is provided, including a light source emitting an amount of light corresponding to a supplied power; a light detection part receiving at least a part of the light emitted by the light source and generating a signal corresponding an amount of received light as an output signal; a smoothing filter smoothing a signal based on the output signal; a signal change amount calculation part calculating a first and a second change amounts corresponding to a change amount between at least two selected acquisition values selected from acquisition values based on the output signal at current or past time; a light source control part controlling the power supplied to the light source based on the first change amount; and a filter control part controlling characteristics of the smoothing filter based on the second change amount.