公开(公告)号：WO2018226298A1

公开(公告)日：2018-12-13

申请号：PCT/US2018/024801

申请日：2018-03-28

Applicant: APPLE INC.

Inventor： BHOWMICH, Abhishek ,  VYRROS, Andrew H. ,  SALESI, Matthew R. ,  VAISHAMPAYAN, Umesh S.

IPC: H04L9/32

CPC classification number: G06F21/606 ,  G06F16/26 ,  G06F17/145 ,  G06F17/16 ,  G06F17/18 ,  G06F21/6254 ,  H04L9/3239 ,  H04L2209/34 ,  H04L2209/42

Abstract: Embodiments described herein ensure differential privacy when transmitting data to a server that estimates a frequency of such data amongst a set of client devices. The differential privacy mechanism may provide a predictable degree of variance for frequency estimations of data. The system may use a multibit histogram model or Hadamard multibit model for the differential privacy mechanism, both of which provide a predictable degree of accuracy of frequency estimations while still providing mathematically provable levels of privacy.

公开(公告)号：EP4490745A1

公开(公告)日：2025-01-15

申请号：EP23719212.5

申请日：2023-04-04

Applicant: Apple Inc.

Inventor： PAHWA, Aroon ,  SALESI, Matthew R. ,  WILSON, David T. ,  MORINIGO, Jorge A. ,  TOM, Siji Rachel ,  WATERSON, Zachary J. ,  WINSTROM, Lucas O. ,  VILLANUEVA, Blanca Isabel C. ,  DEPALMA, Glen R. ,  AZIMI, Reza

IPC: G16H20/30 ,  G16H40/63 ,  G16H40/67 ,  G16H50/30 ,  G16H50/70 ,  A61B5/11