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:
Dec. 24, 2019
Filed:
May. 23, 2016
Applicant:
Maxell, Ltd., Kyoto, JP;
Inventors:
Assignee:
Maxell, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/042 (2006.01); G06F 3/0488 (2013.01); G06K 9/00 (2006.01); G06F 3/01 (2006.01); G06K 9/46 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0425 (2013.01); G06F 3/017 (2013.01); G06F 3/042 (2013.01); G06K 9/00375 (2013.01); G06K 9/00355 (2013.01); G06K 9/4661 (2013.01); H04N 9/31 (2013.01);
Abstract
An operation detection device includes: first and second illuminations that irradiate illumination light from different positions onto an operation surface on which a user performs an operation, and a camera that captures the operation surface together with at least two fingers of a same hand of the user. First and second shadows of a same hand of the user are extracted from captured images obtained by the camera. Respective touch points of the same hand of the user on the operation surface are detected including when the first and second shadows corresponding to first and second fingers of the same hand have overlapping areas.