ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,786,648, issued on Nov. 3, was assigned to AXIS AB (Lund, Sweden).

"System and method for daisy chain addressing in a speaker system" was invented by Hakan Berg (Lund, Sweden), Mattias Nylander (Lund, Sweden), Jonathan Toft (Lund, Sweden) and Marcus Sandell (Lund, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A speaker system comprises a main unit and passive units connected by control voltage signal, reference voltage signal and audio signal connections to form a daisy chain. The main unit generates a control voltage through the control voltage signal connection; a reference voltage through the reference voltage signal connection; and an audio s...