ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,753,650, issued on Oct. 6, was assigned to OPTEX Co. LTD. (Shiga, Japan).
"Automatic door system" was invented by Hiroyuki Ohba (Shiga, Japan), Hiroaki Tanabe (Shiga, Japan) and Takayasu Ikeda (Shiga, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An automatic door system includes a double sliding door. The automatic door system includes: one sensor configured to detect a target; and a door opening and closing control unit configured to control opening and closing of the door based on a detection result of the sensor. The sensor includes one or more transmitting elements configured to transmit a frequency modulated continuous wave (FMCW) type trans...