ALEXANDRIA, Va., March 24 -- United States Patent no. 12,587,800, issued on March 24, was assigned to AXIS AB (Lund, Sweden).
"Method and device for determining a microphone status" was invented by Henrik Duner (Lund, Sweden) and Susanne Duner (Lund, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for determining a status of a microphone comprises inducing a piezoelectric component, located in a vicinity of and in mechanical connection with the microphone, to emit a predetermined impulse waveform; determining whether a response signal waveform from the microphone corresponds to the predetermined impulse waveform; and upon the response signal waveform from the microphone corresponding to the pr...