ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,524,192, issued on Jan. 13, was assigned to Caavo Inc (Milpitas, Calif.).
"Power state detection via audio signal capture" was invented by Neha Mittal (Bangalore, India), Siddharth Kumar (Bangalore, India), Bitto Niclavose (Kottayam, India), Ashish D. Aggarwal (Stevenson Ranch, Calif.), Vinod K. Gopinath (Bangalore, India) and Sharath H. Satheesh (Bangalore, India).
According to the abstract* released by the U.S. Patent & Trademark Office: "Embodiments are provided for automatically determining the power state of a consumer electronic device, such as a television. For instance, a switching device may transmit a reference audio signal to a consumer electronic device for playback there...