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:
Dec. 30, 2025
Filed:
Jan. 17, 2020
Ntt, Inc., Tokyo, JP;
Koki Hamada, Musashino, JP;
Ryo Kikuchi, Musashino, JP;
NTT, Inc., Tokyo, JP;
Abstract
A secure maximum value computation apparatus, assuming that a set X={[[x]], [[x]], . . . , [[x]]}, includes an output unitthat outputs [[x]] and [[1]] as a maximum secret value [[y]] and a flag [[z(x)]], respectively, when n=1 holds, a comparison unitthat computes a comparison result of which is larger with respect to a predetermined order for each pair {[[x]], [[x]]}⊂X of elements of the X, a flag computation unitthat computes whether all comparison results related to each of the [[x]]s are 'large' for each of the [[x]]s to set a computed value as a flag [[z(x)]], and a maximum value computation unitthat uses the [[z(x)]] to computes a maximum value [[y]].