公开(公告)号：US10699622B2

公开(公告)日：2020-06-30

申请号：US15874799

申请日：2018-01-18

Applicant: Apple Inc.

Inventor： Ross Thompson ,  Guy Cote ,  Christopher P. Tann ,  Jerrold V. Hauck ,  Ian C. Hendry ,  Vanessa C. Heppolette ,  Adam J. Machalek ,  Alan M. Dunn ,  Ali Sazegari ,  Lars M. Lindberg ,  Arthur L. Spence

IPC: G09G3/20 ,  G09G3/00 ,  G06F9/451 ,  G09G3/32 ,  G06F3/06 ,  G09G3/3208 ,  G06F9/4401

Abstract: A data processing system can store a long-term history of pixel luminance values in a secure memory and use those values to create burn-in compensation values that are used to mitigate burn-in effect on a display. The long-term history can be updated over time with new, accumulated pixel luminance values.

公开(公告)号：US12008087B2

公开(公告)日：2024-06-11

申请号：US17505318

申请日：2021-10-19

Applicant: Apple Inc.

Inventor： Alan M. Dunn ,  Anish C. Trivedi ,  Ronnie G. Misra ,  Wade Benson ,  Anand Dalal

IPC: H04L29/06 ,  G06F1/3234 ,  G06F21/31 ,  G06F21/60 ,  G06F21/62 ,  G06F21/64 ,  H04L9/32

CPC classification number: G06F21/31 ,  G06F1/3234 ,  G06F21/602 ,  G06F21/62 ,  G06F21/64 ,  H04L9/3242 ,  H04L9/3252

Abstract: Techniques are disclosed relating to maintaining device security associated with reduced power modes. In some embodiments, a computing device receives a request to place the computing device in a reduced power mode in which a first memory of the computing device is powered off. Based on the request, the computing device offloads a memory page from the first memory to a second memory such that the offloading includes encrypting the memory page. Based on a request to resume from the reduced power mode, the computing device restores the memory page from the second memory to the first memory such that the restoring includes decrypting the encrypted memory page. After initiating the restoring, the computing device presents a user authentication prompt asking for a user credential.

公开(公告)号：US20220129527A1

公开(公告)日：2022-04-28

申请号：US17505318

申请日：2021-10-19

Applicant: Apple Inc.

Inventor： Alan M. Dunn ,  Anish C. Trivedi ,  Ronnie G. Misra ,  Wade Benson ,  Anand Dalal

IPC: G06F21/31 ,  G06F21/62 ,  G06F21/64 ,  G06F1/3234 ,  G06F21/60

Abstract: Techniques are disclosed relating to maintaining device security associated with reduced power modes. In some embodiments, a computing device receives a request to place the computing device in a reduced power mode in which a first memory of the computing device is powered off. Based on the request, the computing device offloads a memory page from the first memory to a second memory such that the offloading includes encrypting the memory page. Based on a request to resume from the reduced power mode, the computing device restores the memory page from the second memory to the first memory such that the restoring includes decrypting the encrypted memory page. After initiating the restoring, the computing device presents a user authentication prompt asking for a user credential.