ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,422,559, issued on Sept. 23, was assigned to DENSO Corp. (Kariya, Japan).
"Ranging device with improved sensitivity" was invented by Naoki Yoshimoto (Kariya, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "In a ranging device, a background light calculation unit calculates, for each of a plurality of bearing regions, a background light level parameter related to a level of background light arriving from the bearing region. A coefficient calculation unit calculates multiplier coefficients for the bearing regions such that the multiplier coefficient for each peripheral bearing region around a subject bearing region is negatively correlated with a di...