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:
Jan. 23, 2024
Filed:
May. 21, 2019
Applicant:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Inventors:
Assignee:
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/24 (2006.01); G01B 15/04 (2006.01);
U.S. Cl.
CPC ...
G01B 11/24 (2013.01); G01B 15/04 (2013.01);
Abstract
In an embodiment, an edge extraction method includes: emitting, toward an object, an electromagnetic wave polarized only in one direction perpendicular to a propagation direction; receiving a transmitted electromagnetic wave that has been transmitted through the object, using a receiving antenna; calculating an intensity in the propagation direction of the transmitted electromagnetic wave based on an intensity of the transmitted electromagnetic wave received by the receiving antenna; and obtaining a spatial distribution of the intensity in the propagation direction of the transmitted electromagnetic wave.