ALEXANDRIA, Va., March 17 -- United States Patent no. 12,578,780, issued on March 17, was assigned to REALTEK SEMICONDUCTOR CORP. (Hsinchu, Taiwan).

"Circuit sleep method and sleep circuit" was invented by Song Wang (Suzhou, China), Dong-Yu He (Suzhou, China), Jian Sun (Suzhou, China) and Hui Li (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A circuit sleep method includes: writing all data stored in a memory unit into a current data-backup block and performing a check calculation on the data written into the current data-backup block to obtain a first verification value; powering down the circuit to make the circuit enter a sleep mode; restarting the circuit and determining whether the proces...