Izinguquko Ziyi-Comin 'Kuzokusakazwa kwe-TV - Thola ukuthi Kungakuthinta Kanjani
I-TV Ezinsukwini Zokuhle Zama-Ol
Ingabe ukhulile ngokwanele ukukhumbula lapho ukubukwa kwe-TV kwakulula ngempela? Konke okwakudingeka ukwenze ukuthenga i-TV, uxhuma izindlebe zogwaja, noma i-antenna yangaphandle, vula i-TV ngaphandle kokusebenzisa ukude, khetha enye yeziteshi ezingu-4 noma ezingu-5 zendawo, futhi usethelwe ukuhamba.
Kodwa-ke, ukuthola izinhlelo ze-TV kwaqala ukushintsha ekuqaleni kwawo-1960 ngokusungulwa kwekhebula ne-pay-per-view TV, eyanikeza ukhetho oluningi lokukhethwa kwesiteshi kanye nokuhlola uhlelo, kodwa futhi ludinga ibhokisi langaphandle (kanye nemali eyengeziwe). Khona-ke, maphakathi ne-1990 sika-TV ye-satellite yatholakala, eyanikeza enye indlela yokuthola izinhlelo ze-TV (futhi idinga imali eyengeziwe).
Kodwa-ke, naphezu kwezindleko ezengeziwe zombukeli, kokubili ikhebula ne-satellite satellite yikhiphe isidingo salokho kulabo abathinteka kogwaja noma i-antenna yangaphandle, ngaleyo ndlela yaba yindlela ehlukile e-antenna ethandwayo, ikakhulukazi kulabo ababehlala ezindaweni ezingamukelekile.
Futhi, ngisho nakwabo abahlala ezindaweni ezinhle zokumamukela, inamba ekhuphukile yamashaneli ekhebula-ne-satellite-kuphela enikeza okuqukethwe kwe-niche program, yenza isinqumo sokubamba phansi leyo antenna endala nakakhulu.
Ngakolunye uhlangothi, nakuba engaseningi iningi, bekukhona isibalo esikhulu sababukeli abasasamukela okungenani ingxenye yezinhlelo zabo ze-TV nge-antenna - futhi, kulabo babukeli, izinto nazo zizoshintsha.
I-Digital TV Transition
Maphakathi no-2000, i-FCC (Federal Communications Commission) yamemezela ukuthi ngo-Juni 12, 2009 konke ukusakazwa kwe-TV kuzoguqula kusuka ku-analog kuya ku-digital. Lokhu kusho ukuthi izigidi ze-TV ezisetshenziselwa ukusetshenziswa zazingasakwazi ukuthola izimpawu zokusakazwa kwe-TV emoyeni, ngaphandle kokungezwa kwebhokisi lokuguqula i-analog-to-digital. Nakuba ababhalisile bekhebula / abathengi satellite bebengathintwa ekuqaleni, labo ababukeli abasebenzisa i-antenna ukuthola okungenani ingxenye yezinhlelo zabo ze-TV babe.
Lokhu kwasho nokuthi "ukuguqulwa kwe-DTV" kunikeze abathengi ithuba "lokuthenga amathelevishini amasha awanikezanga kuphela ukwamukelwa kwezimpawu ezintsha ze-digital digital, kodwa futhi wakwazi amandla okufinyelela nokubuka izinhlelo ze-TV ku-Definition ephezulu ngokulinganisa kwe- 16x9 isikrini.
Isidingo Sokushintsha Okuningi
Uhlelo lwe-Digital Digital ukusakaza, olwalandela izimpendulo ezisungulwe futhi ezigcinwe yi-ATSC (iKomiti YezokuThuthukisa I-Advanced Television) futhi olusetshenziswe yi-FCC (Federal Communications Commission) liye lahlala ngokuqinile kusukela ngo-2009. Nokho, eminyakeni engaphansi kwengu-10 emva kokutholwa kwayo, manje seyindlela yokushintshwa.
Izindinganiso zamanje ze-ATSC zinikeza abashayeli be-TV abanamandla okudlulisa izinhlelo ze-TV ngamanani ngeziphakamiso ezingafani ezingu-18 kusuka ku-480i kuya ku-1080p. Noma kunjalo, nakuba wonke ama-tuners akhiwe-abe ngama-HDTV nama-4K ama-HD ama-HD kusukela ukuguqulwa kwe-DTV kusebenze amandla okuthola okuqukethwe kokusakazwa kwe-TV kuyo yonke izinqumo ezingu-18, kuphela i- 720p ne-1080i empeleni isetshenziswe ngokujwayelekile ngendawo nendawo iziteshi zokudluliselwa.
Nakuba lokhu kulungile kulabo abangabakho ama- 720p noma ama- HDTV angu- 1080p , abanikazi bama- 4K Ultra HD TV bamanje bafinyeleleka.
Lokhu kungenxa yokuthi kukhona inani elikhulayo le-TV ye-4K ye-TV kanye nokuqukethwe kwe-movie etholakalayo ngokuhlinzeka ngokusakaza okuzinikeziwe, ikhebula, i- satellites , futhi manje i- Ultra HD Blu-ray discs / Imithombo yomdlali .
Noma kunjalo, uma kuziwa ezinhlelweni ze-TV ezivela kumanethiwekhi amakhulu, iziteshi zendawo, kanye neziteshi eziningi zekhebula, ngisho nakwi-4K Ultra HD TV, ababukeli basuke bethola ngempela isignali ye-720p noma engu-1080i (njengoba kushiwo ngenhla), ngisho noma lezo zimpawu zihanjiswa ngekhebula noma i-satellite. Ngamanye amazwi, lokho okubonayo ngempela esibukweni kusukela kusakazwa kakhulu, ikhebuli, neziteshi zethalavishini kuphakanyisiwe ukufanisa inombolo noma amaphikseli atholakalayo kusikrini se-4K Ultra HD TV.
Faka i-ATSC 3.0 NextGen TV
Ukuze uhambisane nezintambo zokusika izintambo kanye nokuthuthukiswa kwezinguquko ze-4K Ultra HD nokuqukethwe okungu-4K, i-ATSC, ngemuva kweminyaka eminingana yentuthuko, manje iqeda isinyathelo esilandelayo ekusakazeni kwe-TV, okwamanje ibizwa ngokuthi i-ATSC 3.0 (ebizwa nangokuthi "I-NextGen TV", ehloselwe ukufaka esikhundleni sesistimu yamanje.
I-ATSC 3.0, uma isetshenziswe, kulindeleke ukuba ifake eyodwa, noma ngaphezulu, yezici ezilandelayo:
- Ukudluliselwa kwe-TV kwe-TV ku-4K isinqumo, kanye ne-HD ne-SD (digital) ikhono lokumemeza nge-simulcasting.
- Ukufakwa kwe- HDR ne-Wide Color Gamut.
- Ukuhambisana kwe-120fps yokudlulisa ividiyo.
- Ikhono lokudlulisa i-Immersive Audio, amathrekhi amaningi olimi, nezinye izithuthukisi zomsindo.
- Ikhono lokudlulisa i-3D langempela lokuzalwa.
- Ukudidiyelwa kokudluliswa kwe-over-the-air and broadband kokuhlelwa kokuqukethwe kanye nokuqukethwe okungeziwe kumadivaysi anelula neselula. Ngamanye amazwi, isithombe sokuqala nokudluliswa komsindo kungenziwa ngaphezu kwemoya, kanti izici ezengeziwe ezihlobene nokuqukethwe zinganikezwa ukufinyelela okufinyeleleka kokusakaza kanyekanye. Lokhu kungabanika abasakazo ikhono lokungeza "isikrini sesibili" namanye okuhlangenwe nakho lapho bebuka izinhlelo ezithile ze-TV.
- Uhlelo Oluphuthumayo Lokuxwayisa Isimo Sezulu, izinhlekelele zemvelo, noma ezinye izenzakalo ezibalulekile.
ATSC 3.0 Izinzuzo
Uma konke okushiwo ngenhla okuhlongozwayo kufakiwe kufakiwe, kuzodingeka kube yisikhathi esikhulu sabasakazo be-TV ngokubili kwekhwalithi yevidiyo neyomsindo, kanye nezici ezilula. Lokhu kuzobafaka ngezinye izinhlobo zokulethwa kokuqukethwe okusekelwe ngokusakazwa kwe-4K naku-intanethi okwamanje etholakalayo kwabanye abahlinzeki bokuqukethwe.
Enye into ebalulekile ukuveza, yisithakazelo esikhulisiwe "ekunqumeni intambo" ngabathengi. "Ukusika izintambo" kukhulula ababukeli ekukhokheni ikhebula nekhebula nezinsiza zethalavishini abazifuni futhi bathembele kakhulu kwi-intanethi futhi mahhala imithombo yokuhlela yendawo kanye nenethiwekhi yokubuka i-TV. Ngokwengeza i-4K, nezinye izici ezinikezwa i-ATSC 3.0, ukusika intambo kungase kukhange nakakhulu nakakhulu.
Izithiyo zokuqaliswa kwe-ATSC 3.0
Nakuba ukuqaliswa kwe-ATSC 3.0 kuthembisa ukuletha okungcono, nokuguquguquka okukhulu, ukubuka okubukwa kwe-TV kuya phambili, kusho nokunye ushintsho olukhulu kubathengi ngokuthi ama-TV azo amanje azosebenza kanjani.
Ngaphezulu, njengoba i-ATSC 3.0 isetshenziswa, uhlelo lwamanje lokusakaza lwe-DTV / HDTV luzoqhubeka lusetshenziselwa ukuthunyelwa isikhathi esithile, ngakho-ke ama-TV akho amanje angeke asebenze isikhathi esithile - ngeke nje ukwazi ukufinyelela izici eziphambili ezinikezwe i-ATSC 3.0. Inqubo efanelwe yayisetshenziselwa izibonakaliso ze-analog TV iminyaka eminingana ngaphambi kokuthi idethi yokuguqulwa kweDTV eyedlule iphelile.
Kodwa-ke, ngemuva kokubheka ukuthi kunamathelevishini anele asetshenziswayo afaka ama-ATSC 3.0 ahlanganisiwe, usuku-oluzobe lusetshenziswa lapho kuzosetshenziswa amazinga kuphela e-ATSC 3.0.
Uma ngabe usuku lokunqunywa lufinyelelwe, lokhu kungasho ukuthi abanikazi be-analog, i-HD, nanoma yikuphi okungeyona i-ATSC 3.0 eyenziwe i-Ultra HD TV esebenzayo ngaleso sikhathi kuzodingeka ibe nama-external (mhlawumbe njengebhokisi lokuma elilodwa noma unamathele nge- HDMI uxhumano ) ukuze uthole inethiwekhi nenhlelo yendawo ye-TV emoyeni.
Amabhokisi angaphandle noma amanye ama-adapter e-plug-in kufanele athole futhi athumele ukuhanjiswa kwe-ATSC 3.0 kulabo abanakho ama-analog, 720p, noma ama-TV angu-1080p, kodwa, ngokuqinisekile, anganikeza isinqumo sokuzalwa esingu-4K abanikazi bama-4K Ultra HD TV kungenzeka ukuthi ayinayo i-ATSC 3.0 ye-tuner eyakhelwe ngaphakathi.
Ngaphezu kwalokho, abahlinzeki bekhebula nabathengisi be-satellite bangasadingeka banikeze ukuhambisana okuphansi kokuguqulwa kubhalisile babo abangenayo i-TV ehambisanayo isikhathi eside.
Lapho i-ATSC 3.0 isetshenziswa
ISouth Korea ibilokhu ihamba phambili ku-ATSC 3.0 yokutholwa. Baqala ukuhlola isikhathi esigcwele ngo-2015, futhi kusukela ngo-May 2017, umemezele ukuthi amanethiwekhi amathathu amakhulu e-TV alungele ukudlulisa isikhathi esigcwele i-ATSC 3.0 emadolobheni amaningana. Ukuze uthole ukwesekwa okungeziwe eNingizimu Korea umenzi we-LG, uzokwenza ama-TV atholakale nge-ATSC 3.0 tuners ezakhelwe ngaphakathi.
Ku-US, izinto ziyaqhubeka kancane. Ngonyaka we-2016, i-ATSC 3.0 ithathe isinyathelo sokuqala ngaphandle kwebhubhu ngokuhlolwa okugcwele kwenkambu nge-WRAL-TV eRaleigh, NC.
I-Trivia Alert! I-WRAL-TV yayibuye isiteshi sokuqala se-TV sokusakaza nge-HD emuva ngo-1996 - eminyakeni engu-13 ngaphambi kwe-2009 DTV Transition.
Nakuba abathengi bengenakho ukufinyelela kulezi zinguquko zokuqala, unikeza abashicileli be-TV nabakhiqizi be-TV ithuba lokuhlola izici zombili zokudlulisa okuqukethwe, kanye ne-hardware / firmware yokwamukelwa / yokumiswayo okuzodingeka ukuthi ifakwe ku-Ultra HD Ama-TV aya phambili.
Uma konke kuhamba kahle, ungabona ukuphuma kancane kwe-ATSC 3.0 kuzo zombili iziteshi ze-TV, kanye nama-TV, okuqala ngasekupheleni kuka-2017. Kodwa-ke, ngokuqondene nokuthi uhlelo lwe-ATSC lwamanje oluzoshintshela ngokuphelele ku-ATSC 3.0 lungabekwa ngokusemthethweni - lokho ukuqagela kwanoma ubani - cishe ngo-2020.
Okubalulekile
Ukushintshwa kokusakazwa kwe-HDTV okwamanje i-ATSC 3.0 nakanjani kuyisenzo esiyinhloko esithinta kakhulu bobabili abashayeli be-TV nabathengi.
Izinselelo zabasakazo zihlanganisa kokubili izindleko ezinkulu kanye nezinkinga zokungena. Isibonelo, ngesikhathi sesigaba sokuguquka, abaningi abasakazwa nge-TV bazobhekana nokusakaza ngesikhathi esisodwa namasistimu amasha, okuzodinga ukudlulisa kanye neziteshi ezahlukene. Njengengxenye yenguquko, iziteshi eziningi kuzodingeka zishintshe kumzila ohlukile.
Kubathengi, izinto zingase zidideke kakhulu ngesikhathi sokuguquka.
Phakathi nale nqubo, abathengi bazobhekana nesimo ezimakethe ezineziteshi eziningana zeTV njengoba ezinye iziteshi zingase ziqhubekele ekuthutheleleni ohlelweni olusha, kanti ezinye zingase zibe sesimisweni samanje.
Futhi, abashicileli be-TV abadingeki ukuba basebenzise zonke izici ze-ATSC 3.0. Bangakhetha ukuthi yiziphi izici abazizwa bezisebenzela kakhulu ababukeli bazo futhi bavumelane nesimo sebhizinisi labo.
Isibonelo, ngokungafani nezindinganiso zamanje, abenzi be-TV abadingeki ukuba bafake amathrekhi kuma-TV amasha ukuthola ukuthunyelwa kwe-ATSC 3.0. Kodwa-ke, kulindeleke ukuthi ukucindezela emakethe okuncintisana kuzokwenza ukuthi kulandelwe ukulandelwa. Ngokwengxenye yayo, i-LG iye iye yabonisa ukuthi izofaka ama-tuners afanelekayo e-ATSC 3.0 kuma-TV awo amasha emakethe yase-US phakathi nenkathi yokuguquka.
Ukuze usize kulolu shintsho, abenzi bebhokisi be-TV-top-top baye babonisa ukuthi amathrekhi angeziwe angaphandle azokwenziwa abathengi abawadinga - Noma kunjalo, ngeke kube khona uhlelo lwephephoni oluxhaswe nge-FCC njengoba lwenziwa ngo-2009-analog-to Ukushintshwa kwe-TV ye-digital.
Ngaphezu kwalokho, ukugcinwa kwempahla kusadingeka ukuthi kwenziwe ngendlela yokuthi ama-cable kanye nabahlinzeki be-satellite bazohlanganisa kanjani uhlelo olusha lokusakaza lwe-ATSC 3.0 kumasevisi abo okuqukethwe.
QAPHELA: Ulwazi olukulesi sihloko maqondana nezindinganiso ze-ATSC 3.0, izici, nokusebenza kungashintsha. Ngenxa yalokho, njengolwazi olwengeziwe mayelana namazinga nokuqaliswa, kufaka phakathi lapho iziteshi zakwa-TV zendawo zizoqala ukunikeza ukusakaza kwe-ATSC 3.0, nokutholakala kwama-TV okuhlomele ukuthola izimpawu ze-ATSC 3.0, kuyatholakala, lesi sihloko sizobuyekezwa.
Isici seBhonasi: Ungatholi kahle nge-ATSC 3.0 - kunezimbangela emsebenzini ofuna ukwenza i-jump to 8K! Kuzo zonke imininingwane, funda umbiko wami: Isixazululo esingu-8K - Beyond 4K .