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:
Sep. 01, 2026
Filed:
Apr. 16, 2024
Alibaba Innovation Private Limited, Singapore, SG;
Zhaohui Chen, Beijing, CN;
Zhen Gu, Beijing, CN;
Yanheng Lu, Shanghai, CN;
Dimin Niu, Sunnyvale, CA (US);
Ziyuan Liang, Hangzhou, CN;
Qi'ao Jin, Hangzhou, CN;
Fan Zhang, Hangzhou, CN;
Yuan Xie, Sunnyvale, CA (US);
Alibaba Innovation Private Limited, Singapore, SG;
Abstract
A privacy calculation unit includes a first calculation subunit, a storage subunit, and a communication subunit. The first calculation subunit includes circuitry to calculate first domain conversion ciphertexts sequentially. The storage subunit is configured to store the calculated first domain conversion ciphertexts received from the first calculation subunit. The first domain conversion ciphertext is an intermediate ciphertext when first to-be-converted data is converted from a first privacy-preserving computation domain to a second privacy-preserving computation domain. The communication subunit includes circuitry to send, in a process in which the first calculation subunit calculates a postorder first domain conversion ciphertext, a preorder first domain conversion ciphertext to a target privacy calculation unit other than the current privacy calculation unit, to enable the target privacy calculation unit to generate first converted data corresponding to the first to-be-converted data in the second privacy-preserving computation domain according to the preorder first domain conversion ciphertext.