Emva kweeminyaka zokubukela i-analog TV, ukufakwa kwe-HDTV kuye kwavula ithuba lokubukwa kwe-TV ngombala ophuculweyo kunye neenkcukacha. Nangona kunjalo, njengempembelelo yecala engadingeki, kusekho abathengi abaninzi ababukela iinkqubo zee-analog zethelevishini kunye neVHS endala kwii-HDTV zabo ezintsha. Oku kuye kwavelisa izikhalazo ezininzi malunga nomgangatho obonakalayo ococekileyo weempawu zethelevishini ze-analog kunye nemithombo yevidiyo ye-analog xa ibonwa kwi-HDTV.
I-HDTV: Akukho & # 39;
Ingcamango ephambili yokwenza ukuxhuma kwi-analog ukuya kwi-HDTV kukufikelela kumaziko okubuka umgangatho ongcono. Nangona kunjalo, ukuba ne-HDTV ayisoloko iphucula izinto, ngokukodwa xa ubukela umxholo ongekho we-HD.
Enyanisweni, imithombo yevidiyo ye-analog, efana neVHS kunye nekhebula le-analog, kwiimeko ezininzi, ziya kubonakala zibi ngakumbi kwi-HDTV kunokuba zenzele kumabonwakude omgangatho ofanayo.
Isizathu sale meko kukuba ii-HDTV zinamandla okubonisa ingcaciso engaphezulu kwe-TV ye-analog, enokuyicinga ukuba yinto entle-kwaye, ininzi inxalenye, ikhona. Nangona kunjalo, i-HDTV entsha ayiyi kuyenza yonke into ibonakale ilungile njengoko i-video processing circuitry ( eyenza ukuba uphawu olubhekiselwe kuyo njengevidiyo upscaling ) luphucula zombini iindawo ezilungileyo nezimbi zesithombe esisezantsi.
Ucocekile kwaye uzinzile uphawu lwangaphambili, umphumo ongcono oya kuba nawo. Nangona kunjalo, ukuba umfanekiso unomsindo wesiqalo sombala, ukuphazamiseka kwamagqabantshintshi, ukuphaphaza umbala, okanye iingxaki ezisemgangathweni, (ezingabonakaliyo kwi-TV ye-analog ngenxa yokuba ixolela kakhulu ngenxa yesisombululo esezantsi) ukucutshungulwa kwevidiyo kwi-HDTV uya kuzama ukucoca. Nangona kunjalo, oku kunokunikela iziphumo ezidibeneyo.
Enye into ebangela umgangatho we-analog kumabonakude kwi-HDTV ixhomekeke kwinkqubo ye-upscaling esebenzayo ngabenzi be-HDTV ezahlukeneyo. Ezinye ii-HDTV zenza ukuguqulwa kwe-analog-to-digital kunye nenkqubo yokuphucula phambili kunezinye. Xa uhlola ii-HDTV okanye ukuhlaziywa kwe-HDTVs, phawula nayiphi na izimvo malunga nekhwalithi yokuphakamisa ividiyo.
Enye ingongoma ebalulekileyo ekufuneka yenziwe kukuba abaninzi abathengi kwi-HDTV ( kwaye ngoku i-4K Ultra HD TV ) nabo baya kuphucula ubukhulu beskrini. Oku kuthetha ukuba njengoko isikrini sifumana sikhulu, imithombo yevidiyo yesisombululo esezantsi (i-VHS) iya kubonakala yimbi, ngendlela efana neyokufufumla imifanekiso yeziphumo kunye neengcambu zichazwe ngaphantsi. Ngamanye amazwi, oko kwakubonakala kunene kwi-TV engama-27 intshi ye-analog TV, ayiyi kubukeka kakuhle kuleso ntsha entsha ye-LCD HD okanye i-4K Ultra HD TV, kwaye isebenza nakwii-TV ezinkulu.
Iziphakamiso Ukuphucula i-HDTV yokubukela i-Experience
Kukho amanyathelo onokuyithatha okungeke akwenze ukukhaba loo mkhuba wokubukela i-analog kwi-HDTV yakho kodwa xa ubona ukuphuculwa - ezo zixhobo ze-VHS ezindala ziya kuchitha ixesha elininzi kwikhefu lakho.
- Qinisekisa ukuba unombonakaliso olungcono kakhulu - Ukuba usebenzisa ikhebula okanye i-satellite, tshintshela kwiDiskridi yeDiskrikhi, iCandelo le-HD, okanye i-HD Satellite. Ukuba unayo i-HDTV ephezulu yokusebenza, kutheni uchithe imali yakho ngokusondeza ngomthombo wesignali ophantsi - uhlawula i-HD amandla - kufuneka uvune imivuzo.
- Ukuba unayo ibhokisi ye-HD-bhokisi okanye ibhokisi le-satellite ye-HD, xhuma kwi-HDTV usebenzisa i- HDMI okanye iVidiyo yeVidiyo (kunye naluphi na uhlobo loxhumo olusetyenziswa yi-cable okanye i-satanethi ibhokisi ukuhambisa ii-HDTV kunye ne-Digital signals) ukuqhuma okanye ukuqhubela kwi-RF Connection .
- Yeka ukurekhoda nokudlala ii-TH zeeTape kwaye ubhale ividiyo yakho yasekhaya okanye i-TV kwi-DVD ( nangona le nto iyanzima kakhulu ngenxa yezinto ezininzi ), okanye i-DVR (mhlawumbi enye ene-HD) kwi-cable yakho okanye isevisi ye-satellite. Enyanisweni, kukho ezinye i-DVR ezikhoyo zokurekhoda kwiinkqubo ze-HD ze-HD, ezifana ne- Master Master DVR + ne -Nuvyyo Tablo .
Ngaphantsi
Kulabo basenomabonakude we-analog, gcinani engqondweni ukuba zonke iimpawu zethelevishini zokusasazwa kwe-analog zaphela ngo- Juni 12, 2009 . Oku kuthetha ukuba i-TV endala ayinakukwazi ukufumana nayiphi na inkqubo ngaphandle kwe-TV yombonisi okanye ngaphandle kokuba ufumane ibhokisi yokuguqula i- analog-to-digital okanye, ukuba ubhalisela kwi-cable okanye inkonzo ye-satellite, ukuba uyiqashise ibhokisi inketho yokuxhumeka kwe-analog (njenge-RF okanye iVidiyo ehlanganisiweyo ) ehambelana ne-TV yakho. Uninzi lweenkonzo zeteksi linikeza inketho yebhokisi yokuguqulela encinci kwiimeko ezinje-bhekisa kwi-cable yakho yangaphakathi okanye umboneleli we-satellite ukuze uthole ulwazi oluninzi.