Ukuqonda Indima Yama-Eand-End processors ezinhlelweni ze-Digital Head-End

Emkhakheni wokusakaza kwedijithali, ama-processors aphela amakhanda adlala indima ebalulekile ekudluliselweni kahle kwezimpawu zethelevishini nasemsakazweni. Lo mbhalo uhlose ukucacisa ukuthi i-Headend yedijithali ikulokho ukubaluleka kwe-Headend processor kulolu hlelo.

Yini i-headital heand? :
I-Headind yedijithali isho indawo ephakathi nendawo yenethiwekhi yokusakaza ethola, izinqubo futhi isabalalisa i-satellite, ikhebula noma amasiginali wethelevishini kanye nemisakazo. Kuyinhliziyo yohlelo, ukuqoqa amasiginali kusuka kwimithombo eminingi futhi uyiguqule ibe yifomethi efanele ukusatshalaliswa kwenethiwekhi. I-Digital Front-End Encres iqinisekisa okuqukethwe kuthunyelwa ezilalelini zokugcina ngendlela esezingeni eliphakeme nelingaguquki.

Indima ye-Head-End processor:
Le khasiI-Heand processor iyingxenye ebalulekile ye-headital yedijithali futhi unesibopho sokuphatha nokucubungula amasiginali angenayo. Umsebenzi wayo oyinhloko ukucubungula futhi unqume izinhlobo ezahlukahlukene zezimpawu zomsindo nezevidiyo kumafomethi alungele ukusatshalaliswa kuwo wonke amapulatifomu amaningi namadivayisi. Isebenza njengesango eliphakathi kokuqukethwe kwe-Broadcaster kanye nenethiwekhi yokusabalalisa.

Iprosesa e-Head-End ithola amasiginali avela emithonjeni ehlukene efana nokuphakelwa kwe-satellite, iziteshi zasendaweni kanye nemithombo ye-inthanethi. Lezi zimpawu zihlanganisiwe, zihlotshiswe futhi ziguqulwe zibe yifomethi ejwayelekile zisebenzisa amasu akhethekile okufaka encwadini kanye namasu wokudlulisa. I-processor yabe isithuthukisa ama-multexes, okuyizinqwaba zeziteshi noma izinsizakalo ezingatholwa ndawonye ngokuvama okukodwa.

Iprosesa e-Head-End futhi isebenzisa amasistimu wokufinyelela anemibandela ukuqinisekisa ukusatshalaliswa kokuqukethwe okuphephile. Ibhala ngemfihlo kanye namasiginali e-decrypts ukuvikela ukufinyelela okungagunyaziwe kanye nokuphanga. Ngokwengeziwe, kwenza amasheke ahlukahlukene asezingeni kanye nemisebenzi yokuqapha ukuze ugcine ubuqotho bokuqukethwe kokusakaza.

Izinzuzo Nentuthuko:
Njengoba kuthuthukiswa ubuchwepheshe, ama-heand processors ayaqhubeka nokuvela ukusekela izidingo zokusakazwa kwanamuhla. Manje sebefaka izici ezifana nokufakwa kwe-encoding yevidiyo ethuthukisiwe, amakhono okusakaza, ama-codecs advanced audio, kanye nokuhambisana namazinga entengo ahlukene. Lezi zithuthukisi zinika amandla opharetha ukuletha okuqukethwe okuphezulu, izinsizakalo ezisebenzayo kanye nokusetshenziswa kwe-bandwidth okusebenzayo.

I-Persossor e-Head-End isebenza njengeyunithi yokulawula ephakathi, ukuhlinzeka ukuguquguquka kanye nokukhubazeka kuma-opharetha wenethiwekhi. Ibavumela ukuthi bangeze kalula noma basuse iziteshi, ngokwezifiso amaphakheji okuqukethwe, futhi avumelanise nezimo ekuguquleni okuncamelayo kwezithameli. Ngokusebenzisa izibalo MulkeXing, iprosesa eli-Head-End lisebenzisa izinsizakusebenza ngokuya ngesidingo sokwandisa ukusetshenziswa kwe-bandwidth, ngaleyo ndlela silondoloze izindleko zabasebenza.

Isiphetho:
Ngokufigqiwe,ama-peand processorsIngabe i-backbone yezinhlelo ze-digital heand futhi zibhekele ukucubungula, ukuphatha, kanye nokusabalalisa amasiginali omsindo nevidiyo kumapulatifomu ahlukahlukene. Idlala indima ebalulekile ekuqinisekiseni ababukeli bathola isipiliyoni esingenamthungo, esezingeni eliphakeme lokubuka. Njengoba ukuthuthuka kuqhubeka, ama-heand processors ayaqhubeka nokuvela futhi azivumelanise nemvelo yokusakazwa eguqukayo.