Ikhowudi yokubona imposiso (ikhowudi yokujonga i-parity): ikhowudi yokukhangela i-parity iqulethe i-n-1 bit unit yolwazi kunye ne-1 bit check element. Iyunithi yolwazi ye-N-1 yidatha esebenzayo kwiinkcukacha esizithumelayo, kwaye iyunithi yokujonga i-1-bit isetyenziselwa ukukhangela impazamo kunye nekhowudi yokuphinda iphinde iphinde iphinde iphinde isetyenziswe.
Ukujonga okungaqhelekanga:ukuba inani lika-1 kolu luhlu lilinganayo, dibanisa u-1 phambi kwayo, kwaye inani lika-1 liba ngumnqakathi, kungenjalo dibanisa u-0;
NONEukuba inani lika-1 kolu luhlu aliqhelekanga, dibanisa u-1 phambi kwayo, kwaye inani lika-1 lilingana, kungenjalo dibanisa u-0;
Umzekelo: (1) 1111 jonga umnqakathi ngu-11111 nokuba ujonge ngu-01111
(2) 1110 itshekhi engaqhelekanga ngu-01110 nokuba itshekhi ngu-11110
Uphawu lwekhowudi yokujonga ukulingana kukuba inokubona kuphela iimpazamo ezingaqhelekanga, kwaye ikhono lokubona impazamo yi-50%, engenakulungiswa.
Ikhowudi yokufumanisa impazamo (ikhowudi yokukhangela i-CRC cyclic redundancy): yindlela yokwahlula i-polynomial ukufumanisa iimpazamo. Umtya omncinci ngamnye uthathwa njengepolynomial, kunye nokusebenza kwemodulo-2 yamkelwe.
Inkqubo yokubala yesiphelo sokuthumela yile: isakhelo sedatha esiza kuthunyelwa + ulandelelwano lokutshekishwa kwamasuntswana e-r, fumana isakhelo sedatha esiza kuthunyelwa, kwaye emva koko wenze ulwahlulo lwemodulo-2 kunye nepolynomial eyenziweyo ukuthatha intsalela, eyiyo. Ulandelelwano lokukhangela isakhelo se-FCS kufuneka longezwe.
Inkqubo yokubala yesiphelo sokufumana: xa isiphelo sokufumana isakhelo, senza i-modulo-2 yokwahlula kunye ne-polynomial eyenziwe, kwaye ihlolisise intsalela. Ukuba intsalela ngu-0, oko kuthetha ukuba inkqubo yothumelo iqhelekile, kwaye emva koko yamkele idatha. Ukuba ayikho i-0, ithetha ukuba inkqubo yokudlulisela ayiqhelekanga, kwaye ilahle idatha.
Oku ngasentla yingcaciso yolwazi "yekhowudi yokufumanisa impazamo" eziswa yi-Shenzhen HDV photoelectric Technology Co., Ltd.Imveliso yonxibelelwano eveliswa yinkampani igubungela;
Iindidi zeemodyuli: iimodyuli zefiber optical, Iimodyuli ze-Ethernet, iimodyuli ze-fiber optical transceiver, iimodyuli zokufikelela kwifiber optical, Iimodyuli ze-SSFP ezibonakalayo, kwaye I-SFP optical fibers, njl.
I-ONUudidi: EPON ONU, AC ONU, ifayibha optical ONU, CATV ONU, GPON ONU, XPON ONU, njl.
OLTiklasi: Ukutshintsha OLT, GPON OLT, EPON OLT, unxibelelwanoOLT, njl.
Iimveliso zemodyuli ezingentla zinokubonelela ngenkxaso yeemeko ezahlukeneyo zenethiwekhi. Iqela le-R&D elinobuchule kunye nelomeleleyo linokunceda abathengi abanemiba yobugcisa, kwaye iqela leshishini elicingayo nelinobuchule linokunceda abathengi bafumane iinkonzo ezikumgangatho ophezulu ngexesha lokubonisana kwangaphambili kunye nomsebenzi wasemva kokuvelisa. Wamkelekile kuwe Qhagamshelana nathi kulo naluphi na uhlobo lombuzo.
