US Patent Issued to AAC Microtech (Changzhou) on Dec. 30 for "Single power amplifier circuit realizes high and low frequency division of a speaker and anti-phase muffling of a receiver, and sounding device incorporating same" (Chinese Inventors)

ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,513,464, issued on Dec. 30, was assigned to AAC Microtech (Changzhou) Co. Ltd. (Changzhou, China).

"Single power amplifier circuit realizes high and low frequency division of a speaker and anti-phase muffling of a receiver, and sounding device incorporating same" was invented by Zhang Ren (Changzhou, China), Zhiwei Zhong (Changzhou, China) and Qi Wang (Changzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a circuit, which includes a first sound signal input end, a second sound signal input end, a power amplifier, a capacitor, a low frequency sounding module and a high frequency sounding module. The present invent...