ALEXANDRIA, Va., March 5 -- United States Patent no. 12,243,578, issued on March 4, was assigned to Advanced Micro Devices Inc. (Santa Clara, Calif.).

"Read clock start and stop for synchronous memories" was invented by Aaron John Nygren (Boise, Idaho), Karthik Gopalakrishnan (Cupertino, Calif.) and Tsun Ho Liu (Boston).

According to the abstract* released by the U.S. Patent & Trademark Office: "A memory controller monitors memory command selected for dispatch to the memory and sends commands controlling a read clock state. A memory includes a read clock circuit and a mode register. The read clock circuit has an output for providing a hybrid read clock signal in response to a clock signal and a read clock mode signal. The read clock circu...