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. 28, 2019
Filed:
Dec. 01, 2016
Panasonic Intellectual Property Corporation of America, Torrance, CA (US);
Yuji Unagami, Osaka, JP;
Natsume Matsuzaki, Osaka, JP;
Shota Yamada, Tokyo, JP;
Nuttapong Attrapadung, Saitama, JP;
Takahiro Matsuda, Ibaraki, JP;
Goichiro Hanaoka, Tokyo, JP;
PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA, Torrance, CA (US);
Abstract
A data search method of a first device storing multiple sets of privacy data acquired from multiple persons and multiple reference features corresponding to the multiple sets of privacy data, where the multiple reference features each are expressed by an n-dimensional vector, includes receiving first encrypted features from a second device connected to the first device, generating multiple second converted features by a second conversion of the multiple reference features, generating of multiple second encrypted features by encrypting the multiple second converted features using inner product encryption, acquiring multiple inner product values by performing inner product computation of each of the first encrypted features and the multiple second encrypted features, determining whether or not the first features and the first reference features are similar, and transmitting of first privacy data corresponding to the first reference features out of the multiple sets of privacy data to the second device.