???? ??? ???? ????. ? ???? ???? ?? ??? ???? ?? ?? ???? ?? ? ???. ??? ????? ?? ???? ?? ????? ??? ????? ??????. The patent holder in the karaoke device is Roberto del Rosario, that's from the Philippines. He designed the karaoke's sing-along program in 1975 and is also identified as the only holder of a patent for your karaoke system on earth.[20]

??? ???. ??? ??? ??? ?????, ?? ??? ?????, ?? ???????. ??? ?? ???? ??? ?? ???? ?????, ? ?? ???? ??? ? ??? ???????. ??? ????? ????? ??? ???? ??? ????? ????, ???? ?? ? ???. ?? ???? ?? ??·?? ???? ?? ? ?? ???? ??·?? ??? ?? ??? ??? ?? ? ?? ??? ??·??? ?? ?? ?? ? ?? ?? ??? ??? ?? ??? ??·?? ?? ??? ?? ?? ?????·??? ?? ??? ? ?? ??? ??? ???? ?? ??? ???