ALEXANDRIA, Va., July 9 -- United States Patent no. 12,354,702, issued on July 8, was assigned to YANGTZE MEMORY TECHNOLOGIES Co. LTD. (Wuhan, China).

"ZQ calibration circuit, operation method, memory and memory system" was invented by Huiyuan Yue (Wuhan, China) and Shiyang Yang (Wuhan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Implementations of the present disclosure disclose a circuit for ZQ calibration. The circuit may include a logic control circuit. The logic control circuit may include a calibration code generation circuit configured to generate an initial calibration code in response to a calibration command. The logic control circuit may include a mapping conversion circuit configured to ...