US Patent Issued to Realtek Semiconductor on March 17 for "Playback circuit, recording circuit and audio chip" (Taiwanese Inventors)

ALEXANDRIA, Va., March 17 -- United States Patent no. 12,580,473, issued on March 17, was assigned to Realtek Semiconductor Corp. (Hsinchu, Taiwan).

"Playback circuit, recording circuit and audio chip" was invented by Fu-Yi Hsieh (Hsinchu, Taiwan), Li-Lung Kao (Hsinchu, Taiwan), Chih Kang Chien (Hsinchu, Taiwan) and Chia-Chi Tsai (Hsinchu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A playback circuit including a digital-to-analog converter (DAC), an amplifying output circuit and a control circuit coupled to both is provided. The DAC is configured to convert an input playback audio signal into an input analog playback audio signal according to a first control signal for controlling an upper limit o...