ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,401,944, issued on Aug. 26, was assigned to Nisshinbo Micro Devices Inc. (Tokyo).

"Microphone signal conversion module and microphone module" was invented by Naoyuki Motoki (Fujimino, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A microphone signal conversion module includes: a buffer circuit to output a second analog signal obtained by carrying out a level conversion with a first gain on a first analog signal input from a transducer; an analog-to-digital conversion circuit to convert a level of the second analog signal with a second gain to a digital value; and a control circuit to control the first gain and the second gain. The second analog s...