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:
May. 10, 2022
Filed:
Apr. 09, 2019
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Takahiro Kawabe, Tokyo, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
An object including a final target that is equivalent to an object obtained by a superposition of three objects of a target, a dark object, and a light object with approximately the same shape, a superposition of two objects of a target and a dark object with approximately the same shape or approximately similar shapes, or a superposition of two objects of a target and a light object with approximately the same shape or approximately similar shapes is arranged in a background of which luminance periodically varies over time. However, luminance of the dark object is lower than luminance of the target, luminance of the light object is higher than the luminance of the target, and the superposition described above is an incomplete superposition in which a part of the dark object and/or a part of the light object is hidden by the target.