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. 25, 2024

Filed:

Jun. 13, 2022
Applicant:

National Chung-hsing University, Taichung, TW;

Inventors:

Jenq-Shyong Chen, Taichung, TW;

Chun-Kuan Wu, Taichung, TW;

Chi-Hsiang Lin, New Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01H 9/00 (2006.01); G06T 1/00 (2006.01); G06T 7/00 (2017.01); G06T 7/55 (2017.01);
U.S. Cl.
CPC ...
G01H 9/00 (2013.01); G06T 1/0007 (2013.01); G06T 7/55 (2017.01); G06T 7/97 (2017.01);
Abstract

A system for measuring periodic displacement of an object in periodic motion at a first frequency includes a light source module, a camera module and a processor. The light source module is configured to periodically illuminate the object at a second frequency that is different from the first frequency and that is related to a sum of the first frequency and a first constant. The camera module is configured to take pictures of the object. The processor is in communication with the camera module in order to receive the pictures, and is configured to determine periodic displacement of the object based on the pictures.


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