Ikhodi yokuthola iphutha (ikhodi yokuhlola ukulinganiswa): ikhodi yokuhlola ukulingana iqukethe iyunithi yolwazi yebhithi elingu-n-1 kanye nesici sokuhlola esingu-1 bit.Iyunithi yolwazi lwebhithi ye-N-1 yidatha evumelekile kulwazi esiluthumelayo, futhi iyunithi yokuhlola ye-1-bit isetshenziselwa ukutholwa kwamaphutha kanye nekhodi yokuphinda isetshenziswe.
Ukuhlola okungavamile:uma inombolo ka-1 kulolu chungechunge ilingana, engeza u-1 phambi kwayo, futhi inombolo ka-1 iba yinqaba, ngaphandle kwalokho engeza u-0;
Ngisho nokuhlola:uma inombolo ka-1 kulolu chungechunge iyinqaba, engeza u-1 phambi kwayo, futhi inombolo ka-1 ilingana, ngaphandle kwalokho engeza u-0;
Isibonelo: (1) 1111 isheke eliyinqaba lithi 11111 ngisho nesheke lithi 01111
(2) 1110 isheke eliyinqaba lithi 01110 ngisho isheke lithi 11110
Isici sekhodi yokuhlola ukulinganiswa ukuthi ingathola kuphela amaphutha angajwayelekile, futhi ikhono lokubona iphutha lingu-50%, elingakwazi ukulungiswa.
Ikhodi yokuthola iphutha (ikhodi yokuhlola ye-CRC cyclic redundancy): iyindlela yokuhlukanisa i-polynomial ukuthola amaphutha.Iyunithi yezinhlamvu encane ngayinye ithathwa njenge-polynomial, futhi ukusebenza kwe-modulo-2 kuyamukelwa.
Inqubo yokubala yesiphetho sokuthumela ithi: uhlaka lwedatha oluzothunyelwa + ukulandelana kwesheke kwamabhithi ama-r, thola uhlaka lwedatha okufanele luthunyelwe, bese wenza ukwahlukanisa kwe-modulo-2 nge-polynomial ekhiqiziwe ukuthatha okusele, okuyi- Ukulandelana kokuhlola kozimele be-FCS kuzokwengezwa.
Inqubo yokubala yesiphetho sokwamukela ithi: uma isiphetho sokwamukela sithola ifremu, yenza ukuhlukanisa kwe-modulo-2 nge-polynomial ekhiqiziwe, bese ihlola okusele.Uma okusele kungu-0, kusho ukuthi inqubo yokudlulisela ijwayelekile, bese yamukela idatha.Uma kungeyena u-0, kusho ukuthi inqubo yokudlulisela ayijwayelekile, bese ilahla idatha.
Okungenhla incazelo yolwazi "yekhodi yokuthola amaphutha" elethwa i-Shenzhen HDV photoelectric Technology Co., Ltd.Imikhiqizo yokuxhumana ekhiqizwa inkampani ihlanganisa;
Izigaba zamamojula: amamojula we-fiber optical, Amamojula we-Ethernet, amamojula we-fiber optical transceiver, amamojula okufinyelela kwefiber optical, Amamojula we-SSFP optical, futhi Imicu ye-Optical SFP, njll.
Isigaba se-ONU: EPON ONU, AC ONU, i-fiber optical ONU, I-CATV ONU, I-GPON ONU, XPON ONU, njll.
Isigaba se-OLT: Ukushintsha kwe-OLT, I-GPON OLT, I-EPON OLT, ukuxhumana OLT, njll.
Imikhiqizo yemojula engenhla ingahlinzeka ngosekelo lwezimo zenethiwekhi ezahlukahlukene.Ithimba le-R&D elichwepheshile neliqinile lingasiza amakhasimende anezinkinga zobuchwepheshe, futhi ithimba lebhizinisi elicabangayo nelichwepheshile lingasiza amakhasimende ukuthi athole amasevisi ekhwalithi ephezulu ngesikhathi sokubonisana kwangaphambilini nomsebenzi wangemuva kokukhiqiza.Siyakwamukela ku Xhumana nathi nganoma yiluphi uhlobo lombuzo.
