ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,439,216, issued on Oct. 7, was assigned to Yamaha Corp. (Hamamatsu, Japan).

"Microphone state display method and microphone state display apparatus" was invented by Yoshifumi Oizumi (Hamamatsu, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A microphone state display method includes receiving a mute-on or a mute-off operation by each of a plurality of microphones, displaying a state of a microphone that has received the mute-off operation as a first state on a display, when receiving the mute-on operation, in a case in which at least one microphone among the plurality of microphones is in a mute-off state, displaying a state of a microphone that ha...