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. 23, 2025
Filed:
Jun. 27, 2023
Advanced Micro Devices, Inc, Santa Clara, CA (US);
Ati Technologies Ulc, Markham, CA;
David Da Wei Lin, Westborough, MA (US);
Ronald Lee Pettyjohn, Concord, MA (US);
Pouya Najafi Ashtiani, Toronto, CA;
Gershom Birk, Coquitlam, CA;
Anwar Parvez Kashem, Sudbury, MA (US);
Advanced Micro Devices, Inc, Santa Clara, CA (US);
ATI Technologies ULC, Markham, CA;
Abstract
In accordance with described techniques for read gate training and tracking, a computing device includes a memory system (e.g., dynamic random access memory (DRAM)) that receives a memory read operation which includes a memory clock that correlates to a physical layer (PHY) clock. The computing device includes a PHY that receives a return data signal from the memory system, where the return data signal includes a returned data strobe that is out-of-phase with respect to the PHY clock. The computing device includes training logic that utilizes edge detection to determine an unknown clocking phase of the returned data strobe with respect to the PHY clock. The computing device also includes tracking logic that utilizes the edge detection to detect a signal drift of the delay signal with respect to the returned data strobe and compensate for the drift.