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:
Mar. 04, 2025
Filed:
Dec. 13, 2019
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Takayuki Arakawa, Tokyo, JP;
Yoshitaka Ito, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 5/1171 (2016.01); G01B 17/06 (2006.01); G01B 21/14 (2006.01); G06T 7/00 (2017.01); G06V 40/10 (2022.01);
U.S. Cl.
CPC ...
A61B 5/1171 (2016.02); G01B 17/06 (2013.01); G01B 21/14 (2013.01); G06T 7/0012 (2013.01); G06V 40/10 (2022.01); G06T 2207/10072 (2013.01);
Abstract
To easily evaluate the performance of an earphone-type device used for otoacoustic authentication at low cost. A generation unit () generates earhole shape data indicating the three-dimensional shape of an individual's ear canal, on the basis of data on the internal structure of an individual's earhole, a center line calculation unit () calculates the center line of the ear canal, on the basis of the ear canal shape data, and a dividing unit () divides the ear canal into a plurality of layers perpendicular to the center line, and calculates, for each of the divided layers, parameters indicating the shape of the ear canal.