ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,393,398, issued on Aug. 19, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Suwon-si, South Korea).

"Apparatus and method for signal processing" was invented by Cheheung Kim (Yongin-si, South Korea), Hyunwook Kang (Daejeon, South Korea) and Hyeokki Hong (Suwon-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A signal processing apparatus includes a frequency detector configured to receive a user input including at least one of a vibration input and a user voice, vibrate in response to the received user input, and detect a frequency of the received user input, based on the vibration, and a processor configured to determine a type of the user ...