??? ?????? ???? ?? ????????? ?????? ???????? ??? ??????????? ??? ??? ??????????? ??? ??????????? ???.????? ??? ?? ???????? ??? ??????? ??? ??????????? ?? ??? ???? ??????, ???????, ???????? ???, ??? ????? ????? ??? ???????? ????????? ???? ???? ????? ?? ???????? ??? ???????? ???? ??????????.Although digital signals are generally connected with the bi