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. 17, 2026
Filed:
Dec. 27, 2021
Nec Corporation, Tokyo, JP;
NEC CORPORATION, Tokyo, JP;
Abstract
A matching system includes a key generation apparatus that generates a registration key matrix, generates a matching key matrix, and generates an auxiliary key matrix from a matrix product of registration key matrix and the matching key matrix; a first transformation apparatus that generates a registered feature vector from registered information input, and generates a registered concealed vector by calculating a product of the registered feature vector and registration key matrix received from the key generation apparatus; a second transformation apparatus that generates a matching feature vector from matching information input, and generates a matching concealed vector by calculating a product of the matching feature vector and the matching key matrix received from the key generation apparatus; and a matching apparatus that matches the registered information and the matching information by calculating a vector-matrix product of the registered concealed vector, the matching concealed vector and the auxiliary key matrix.