Apple Inc.

Alan M Dunn

Jerrold Von Hauck

Guy Cote

Ian C Hendry

Ali Sazegari

Christopher P Tann

Wade Benson

Arthur L Spence

Ronnie G Misra

Anand Dalal

Vanessa Cristina Heppolette

Lars M Lindberg

Ross Thompson

Anish C Trivedi

Adam J Machalek

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.

Secure reduced power mode

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.

Long-term history of display intensities

Growing community of inventors

San Jose, CA, United States of America

Alan M Dunn