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. 04, 2017

Filed:

Aug. 08, 2014
Applicant:

Cognex Corporation, Natick, MA (US);

Inventors:

Benjamin Braker, Louisville, CO (US);

Eric Moore, Boulder, CO (US);

Daniel Feldkhun, Boulder, CO (US);

Assignee:

COGNEX CORPORATION, Natick, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/00 (2006.01); G01B 11/25 (2006.01); G01S 7/481 (2006.01); G01S 7/484 (2006.01); G01S 7/486 (2006.01); G01S 7/499 (2006.01); G01S 17/48 (2006.01); G01S 17/89 (2006.01); G01C 3/08 (2006.01);
U.S. Cl.
CPC ...
G01B 11/005 (2013.01); G01B 11/2518 (2013.01); G01B 11/2527 (2013.01); G01B 11/2536 (2013.01); G01C 3/08 (2013.01); G01S 7/484 (2013.01); G01S 7/486 (2013.01); G01S 7/4815 (2013.01); G01S 7/4818 (2013.01); G01S 7/499 (2013.01); G01S 17/48 (2013.01); G01S 17/89 (2013.01);
Abstract

Methods, systems, and apparatuses are provided for estimating a location on an object in a three-dimensional scene. Multiple radiation patterns are produced by spatially modulating each of multiple first radiations with a distinct combination of one or more modulating structures, each first radiation having at least one of a distinct radiation path, a distinct source, a distinct source spectrum, or a distinct source polarization with respect to the other first radiations. The location on the object is illuminated with a portion of each of two or more of the radiation patterns, the location producing multiple object radiations, each object radiation produced in response to one of the multiple radiation patterns. Multiple measured values are produced by detecting the object radiations from the location on the object due to each pattern separately using one or more detector elements. The location on the object is estimated based on the multiple measured values.


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