ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,628, issued on April 15, was assigned to SEMTECH Corp. (Camarillo, Calif.).

"Proximity sensor for portable wireless device" was invented by Chaouki Rouaissia (Neuchatel, Switzerland) and Remi Le Reverend (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A proximity sensor for a portable wireless connected device, the sensor being arranged to determine whether a part of a user's body is near the portable connected wireless device. The sensor generates a time-averaged proximity that is alerted when the device is brought near a part of a user's body for a given time and may be periodically reset momentarily during the periods of proximity. An in...