ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,445,778, issued on Oct. 14, was assigned to D&M HOLDINGS INC. (Kanagawa, Japan).
"AV amplifier" was invented by Yoshiharu Imahama (Fukushima, Japan) and Shunichi Tani (Fukushima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "An AV amplifier contains an input unit to input digital data and an operation unit that receives a reproduction instruction. A switching unit switches whether to output the digital data input to a server interface unit or DSP in response to the reproduction instruction. The DSP processes the digital data output to obtain and output a two-channel signal, which the server interface unit transmits by the switching unit to a serv...