ALEXANDRIA, Va., March 17 -- United States Patent no. 12,579,977, issued on March 17, was assigned to Realtek Semiconductor Corp. (HsinChu, Taiwan).

"Watermark-based audio processing method and an audio player utilizing the same" was invented by Ying-Ying Chao (HsinChu, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A watermark-based audio processing method for use in the audio player including a receiver, an analog-to-digital converter, a processor, a digital-to-analog converter and a transmitter includes: the receiver receiving an audio input signal, the analog-to-digital converter converting the audio input signal into a digital input signal including a keyword, the processor detecting an energy of...