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:
Nov. 16, 2021

Filed:

Jun. 25, 2019
Applicant:

J-mex Inc., Hsinchu, TW;

Inventor:

Deng-Huei Hwang, Hsinchu, TW;

Assignee:

J-MEX INC., Hsinchu, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 9/32 (2006.01); G01C 9/34 (2006.01);
U.S. Cl.
CPC ...
G01C 9/34 (2013.01); G01C 9/32 (2013.01);
Abstract

A method for identifying a surface slope includes the following steps: A device body with a tilt angle relative to an absolute horizontal plane and associated with a gravity is placed. A plurality of gravity response signals respectively corresponding to a plurality of angles readouts upon sensing the tilt angle are generated. Each of the plurality of gravity response signals is compared with a reference signal one by one to obtain a respective deviation comparison signal. An optical signal having a parameter is emitted according to a magnitude of the respective deviation comparison signal, wherein the parameter and the magnitude have a mathematical relationship therebetween.


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