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:
Dec. 23, 2025
Filed:
Sep. 28, 2022
Advanced Micro Devices, Inc., Santa Clara, CA (US);
Ati Technologies Ulc, Markham, CA;
Gia Tung Phan, Markham, CA;
Ashish Jain, Austin, TX (US);
Chintan S. Patel, Austin, TX (US);
Benjamin Tsien, Santa Clara, CA (US);
Jun Lei, Markham, CA;
Shang Yang, Markham, CA;
Oswin Hall, Markham, CA;
Advanced Micro Devices, Inc., Santa Clara, CA (US);
ATI Technologies ULC, Markham, CA;
Abstract
Systems, apparatuses, and methods for prefetching data by a display controller. From time to time, a performance-state change of a memory are performed. During such changes, a memory clock frequency is changed for a memory subsystem storing frame buffer(s) used to drive pixels to a display device. During the performance-state change, memory accesses may be temporarily blocked. In order to reduce visual artifacts that may occur while the memory accesses are blocked, a memory subsystem includes a control circuit configured to enable a caching mode which caches display data provided to the display controller. Subsequent requests for display data from the display controller are then serviced using the cached data instead of accessing memory.