ALEXANDRIA, Va., Feb. 12 -- United States Patent no. 12,222,399, issued on Feb. 11, was assigned to Feitian Technologies Co. Ltd. (Beijing).

"Method and apparatus for measuring remaining power level of device" was invented by Zhou Lu (Beijing) and Huazhang Yu (Beijing).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for measuring the remaining power level of a device. The state of flag bits are detected, a password is calculated when a first flag bit is set, the password is displayed to reset the first flag bit, and the detection of the state of the flag bits is returned to; the total power consumption is calculated when a second flag bit is set, the remaining power level is updated on t...