ALEXANDRIA, Va., March 31 -- United States Patent no. 12,592,797, issued on March 31, was assigned to RAKUTEN SYMPHONY INC. (Tokyo).
"Wake-up signal waveform design" was invented by Erdem Bala (San Mateo, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a system and method of generating a wake up signal, the method including receiving plurality of input samples; performing subcarrier mapping that maps the plurality of input samples to a set of subcarriers, thereby generating a subcarrier mapper output; generating a first orthogonal frequency-division multiplexing (OFDM) signal by mapping at least a portion of the subcarrier mapper output to a first frequency band that corresponds to a first...