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:
Apr. 26, 2022

Filed:

Mar. 18, 2019
Applicant:

Pixart Imaging Inc., Hsin-Chu County, TW;

Inventors:

Wei-Ru Han, Hsin-Chu County, TW;

Chih-Yuan Chuang, Hsin-Chu County, TW;

Assignee:

PIXART IMAGING INC., Hsin-Chu County, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/02 (2006.01); A61B 5/026 (2006.01); A61B 5/0295 (2006.01); A61B 5/00 (2006.01); A61B 5/01 (2006.01); A61B 5/024 (2006.01); A61B 5/11 (2006.01);
U.S. Cl.
CPC ...
A61B 5/0261 (2013.01); A61B 5/015 (2013.01); A61B 5/0295 (2013.01); A61B 5/4848 (2013.01); A61B 5/4884 (2013.01); A61B 5/7235 (2013.01); A61B 5/742 (2013.01); A61B 5/02416 (2013.01); A61B 5/1118 (2013.01); A61B 2562/046 (2013.01);
Abstract

A microcirculation detection system including a heating device, a photosensitive array and a processing unit is provided. The heating device is used to heat a skin area. The photosensitive array is used to detect outgoing light from the skin area, and output a plurality of brightness variation signals respectively at different time points within a heating period. The processing unit is used to calculate a change of an array energy distribution varied within the heating period according to the plurality of brightness variation signals to accordingly identify a microcirculation state.


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