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.
Patent No.:
Date of Patent:
Apr. 06, 1999
Filed:
Jul. 14, 1995
Applicant:
Inventor:
Shinichi Matsuyama, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B / ; G03B / ;
U.S. Cl.
CPC ...
396 18 ; 396 51 ; 348 78 ;
Abstract
An eye ball detecting device includes a light-receiving unit on which a plurality of regions each including of a plurality of pixels are set, and which receives a reflected image from an eye ball of a user or a person to be examined, Furthermore, the device includes a determination unit for determining the approach of the eye ball of the user to the device when the output from the light-receiving unit satisfies a predetermined condition. The light-receiving unit outputs only one luminance value for each region.
Matsuyama, Shinichi. (1999). Eye ball detecting device (U.S. Patent No. 5892985). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5892985
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile