ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,598, issued on March 18, was assigned to DENSO Corp. (Kariya, Japan).

"Object detection device" was invented by Yu Koyama (Nisshin, Japan) and Tetsuya Aoyama (Kariya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "An object detection device includes a drive signal generator that generates a drive signal including frequency modulation, a first correlation filter that performs correlation detection between the reception signal and a first reference signal corresponding to the drive signal, a first determiner that determines, based on the correlation signal from the first correlation filter, whether the reception signal is a reflected wave of th...