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:
Aug. 05, 2025
Filed:
Mar. 30, 2023
Hangzhou City University, Hangzhou, CN;
Zhejiang Ponshine Information Technology Co., Ltd., Hangzhou, CN;
Zhejiang University, Hangzhou, CN;
Hangzhou Hyperchain Technology Co., Ltd., Hangzhou, CN;
Zhejiang Gongshang University, Hangzhou, CN;
Song Han, Hangzhou, CN;
Siqi Ren, Hangzhou, CN;
Xiaoli Chen, Hangzhou, CN;
Zhibo Wang, Hangzhou, CN;
Liang Cai, Hangzhou, CN;
Minghui Wu, Hangzhou, CN;
Jinsong Han, Hangzhou, CN;
Jianhong Lin, Hangzhou, CN;
Shuai Zhao, Hangzhou, CN;
Shudan Jin, Hangzhou, CN;
Xuanxuan Xu, Hangzhou, CN;
Shen Wang, Hangzhou, CN;
Hangzhou City University, Hangzhou, CN;
Zhejiang Ponshine Information Technology Co., Ltd., Hangzhou, CN;
ZHEJIANG UNIVERSITY, Hangzhou, CN;
Hangzhou Hyperchain Technology Co., Ltd., Hangzhou, CN;
Zhejiang Gongshang University, Hangzhou, CN;
Abstract
The present disclosure provides a data maximum/minimum value (max/min) aggregation method and system for privacy protection. A Paillier cryptosystem is used to encrypt user data, so as to protect privacy and security of user health data. Further, time aggregation is implemented to help a control center obtain an overall health condition of a client in one aggregation period. By using a homomorphic property of the Paillier cryptosystem, the present disclosure implements aggregation of a max/min of privacy protection, and helps the control center obtain a max or a min of health data of the client in the aggregation period.