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.

Date of Patent:
Jun. 04, 2024

Filed:

Sep. 24, 2020
Applicant:

The Wave Talk, Inc., Yuseong-gu Daejeon, KR;

Inventors:

Young-Dug Kim, Seongnam-si, KR;

Kyuong man Cho, Seoul, KR;

Guk hyun Nam, Seoul, KR;

Assignee:

THE WAVE TALK, INC., Yuseong-gu Daejeon, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/51 (2006.01); G01N 21/47 (2006.01); G01N 21/85 (2006.01); G01N 33/18 (2006.01);
U.S. Cl.
CPC ...
G01N 33/18 (2013.01); G01N 21/4788 (2013.01); G01N 21/51 (2013.01); G01N 21/85 (2013.01); G01N 2021/479 (2013.01);
Abstract

Provided is a water examination device including: a main body; a cup accommodation unit formed inward from a surface of the main body such that a cup containing a fluid is accommodated therein; a wave source for irradiating a wave toward the cup accommodation unit; a detector for detecting a laser speckle generated by multiple scattering of the irradiated wave in the fluid, at every time point set in advance; and a controller for estimating whether foreign substances exist in the fluid in real-time by using the detected laser speckle.


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