US Patent Issued to AAC Technologies on Sept. 1 for "Amplifier circuit for microphone, microphone circuit and electronic device" (Singaporean Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,726,164, issued on Sept. 1, was assigned to AAC Technologies Pte. Ltd. (Singapore).

"Amplifier circuit for microphone, microphone circuit and electronic device" was invented by Dong Han (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "An amplifier circuit for a microphone, a microphone circuit and an electronic device are provided. The amplifier circuit includes a voltage regulator having an output terminal, a first constant current source having an input terminal connected to the output terminal of the voltage regulator, a first transistor having a gate serving as an input terminal of the amplifier circuit and a source serving as an output ter...