ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,976, issued on Sept. 23, was assigned to QUANTALRF AG (Switzerland).
"System and method for adjusting amplifier bias current based on input signal envelope tracking" was invented by Ali Fard (Corona Del Mar, Calif.) and Mats Carlsson (Sundbyberg, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system and method which includes receiving an input signal having an envelope and generating an envelope detection signal corresponding to the envelope. A bias current provided to an amplifier circuit is adjusted based upon the envelope detection signal, the amplifier circuit including an amplifier and a transformer. The transformer is configured to e...