ALEXANDRIA, Va., March 12 -- United States Patent no. 12,248,052, issued on March 11, was assigned to Wistron Corp. (New Taipei, Taiwan).

"Doppler radar apparatus and power saving method thereof" was invented by Yao-Tsung Chang (New Taipei, Taiwan), Yin-Yu Chen (New Taipei, Taiwan) and Chuan-Yen Kao (New Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A Doppler radar apparatus, including a transmitter, a receiver, and a processor, is provided. The transmitter transmits a radio frequency signal to a field. The receiver is coupled to the transmitter and receives a reflected signal corresponding to the radio frequency signal from the field. The processor is coupled to the receiver and is configure...