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:
Aug. 14, 2018

Filed:

Feb. 09, 2016
Applicant:

Kabushiki Kaisha Topcon, Tokyo-to, JP;

Inventors:

Fumio Ohtomo, Saitama, JP;

Kaoru Kumagai, Tokyo-to, JP;

Kazuki Osaragi, Tokyo-to, JP;

Assignee:

Kabushiki Kaisha TOPCON, Tokyo-to, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01C 3/08 (2006.01); G01S 17/42 (2006.01); G01C 15/00 (2006.01); G01C 9/06 (2006.01);
U.S. Cl.
CPC ...
G01S 17/42 (2013.01); G01C 9/06 (2013.01); G01C 15/008 (2013.01); G01C 2009/066 (2013.01);
Abstract

The invention provides a posture detecting device, which comprises a tilt detecting unit as rotatably supported around two shafts perpendicular each other to an outer frame and for detecting a tilting from the horizontal, encoders provided on each of the shafts, motors provided so as to rotate each shaft, and a first arithmetic processing unit for driving/controlling the motor based on a detection result from the tilt detecting unit, wherein the first arithmetic processing unit drives the motors so that the tilt detecting unit detects the horizontal based on a signal from the tilt detecting unit when the outer frame is tilted and calculates a posture of the outer frame based on outputs of the encoders when the tilt detecting unit detects the horizontal.


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