ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,455,694, issued on Oct. 28, was assigned to MediaTek Inc. (Hsinchu, Taiwan).

"Input-output memory management unit with memory protection" was invented by Yu-Tien Chang (Hsinchu, Taiwan), Lin-Ming Hsu (Hsinchu, Taiwan) and Chun-Ming Chou (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system on chip includes a dynamic random access memory (DRAM) controller, a secure range (SR) permission checker, a plurality of intellectual property (IP) cores. The DRAM controller includes a SR table configured to store a start address, an end address, and enabled registers of each SR and an access identification (AID) permission table configured to sto...