ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,561, issued on Sept. 23, was assigned to DENSO Corp. (Kariya, Japan).

"Ranging device" was invented by Takayoshi Fujisawa (Kariya, Japan), Akifumi Ueno (Kariya, Japan) and Noriyuki Ozaki (Kariya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "In a ranging device, a characteristic setting unit is configured to extract, from one or more pieces of received-light information representing changes with time in amount of received light acquired by the light receiving unit, at least one of a received-light amount range and a light reception time range of pulsed light other than emitted light from the light emitting unit, as a specified range. A recei...