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:
Jul. 31, 2012

Filed:

Sep. 28, 2010
Applicants:

Tzyy-shuh Chang, Ann Arbor, MI (US);

Hsun-hau Huang, Ann Arbor, MI (US);

Inventors:

Tzyy-Shuh Chang, Ann Arbor, MI (US);

Hsun-Hau Huang, Ann Arbor, MI (US);

Assignee:

OG Technologies, Inc., Ann Arbor, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/08 (2006.01);
U.S. Cl.
CPC ...
Abstract

A portable imaging-based measurement device is developed to perform 2D projection based measurements on an object that is difficult or dangerous to access. This device is equipped with self calibration capability and built-in operating procedures to ensure proper imaging based measurement.


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