ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,457,474, issued on Oct. 28, was assigned to JVCKENWOOD Corp. (Yokohama, Japan).
"Distance notification device and distance notification method" was invented by Masaomi Fukazawa (Yokohama, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A distance notification device includes a first and a second positional information acquiring units that acquire positional information on a user and peripheral users respectively at a predetermined time interval; a distance calculating unit that calculates respective distances between the user and the peripheral users based on the positional information; a distance determining unit that determines whether each of th...