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:
May. 07, 2019

Filed:

Apr. 26, 2016
Applicant:

Robert Bosch Gmbh, Stuttgart, DE;

Inventors:

Felix Wulf, Ludwigsburg, DE;

Tjark Vandommele, Stuttgart, DE;

Assignee:

ROBERT BOSCH GMBH, Stuttgart, DE;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/11 (2006.01); A61B 3/113 (2006.01); A61B 5/18 (2006.01); A61B 5/00 (2006.01); G08B 21/06 (2006.01); A61B 3/10 (2006.01); A61B 3/14 (2006.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
A61B 5/1103 (2013.01); A61B 3/102 (2013.01); A61B 3/113 (2013.01); A61B 3/145 (2013.01); A61B 5/1128 (2013.01); A61B 5/18 (2013.01); A61B 5/4809 (2013.01); A61B 5/7282 (2013.01); G06K 9/0061 (2013.01); G06K 9/00845 (2013.01); G08B 21/06 (2013.01);
Abstract

A method for distinguishing blinking events and instrument gazes on the basis of an eye-opening width. The eye-opening width represents an instantaneously detected clearance between the eyelids of an eye. In a step of ascertaining, a blinking event is ascertained using at least one blinking limit value. The blinking event is ascertained when an opening width value, which represents the eye-opening width, is smaller than the blinking limit value. In a step of determining, an instrument gaze is determined using a maximum blinking duration. The instrument gaze is determined when the detected blinking event is detected as lasting longer than the maximum blinking duration. The steps of the method are able to be carried out anew when the opening width value is greater than an open limit value following the determination of the instrument gaze.


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