Rabu, 27 Agustus 2014

a hada da abubu

ATSC (Advanced Television Systems Committee) wani rukunin kafa a 1982 cewa ci gaba da ATSC Standards for digital televisions a Amurka da kuma a sauran kasashe irin su Canada, Koriya ta Kudu, Mexico, da kuma Honduras. A gajartatattun suna kuma aka sani a koma zuwa ATSC Standards kanta.

ATSC Standards ne mai digital format talabijin wanda zai a cikin dogon lokaci maye gurbin na yanzu NTSC talabijin tsarin, kamar yadda shi ne hali a United States by Fabrairu 17, 2009 da kuma a Canada by Agusta 31, 2011. Wadannan sababbin high definition matsayin samar da nuni ƙuduri fiye da yadda kusan shida sau da wanda ya riga - shi ya nuna kashe wani garabasa 16: 9 m allon images har zuwa 1920x1080 pixels a size. Kada su manta, wasu daban-daban image masu girma dabam har yanzu goyon sabõda haka, a kalla shida misali definition tashoshi iya har yanzu a broadcasted.

Sauti mai hikima, da ATSC ne m da wani "gidan wasan kwaikwayo quality" audio kamar yadda adopts da Dolby Digital AC-3 girma, wanda ya hada da samar da 5.1 channel kewaya sauti.

A lokacin da watsa shirye- shiryensu da ATSC da kuma analog sigina, biyu raba tashoshi ana buƙatar a matsayin ATSC na bukatar wani dukan channel don kanta. Kamar yadda kama-da-wane tashoshi za a iya remapped zuwa wani lamba daga 1 to 99, ATSC tashoshin za su sau da yawa shirki da daya daga cikin NTSC tashoshi ko duk tashoshin zai yi amfani da wannan dama.

Har ila yau, kamar sauran tsarin, da ATSC sigar interwoven misali, da kuma dauke da ya jadadda mallaka kamar yadda ya hada da abubuwa daga MPEG, AC-3 audio coding, da kuma 8VSB daidaitowa.


Kwatanta da Other Standards
A zamanin yau, da ATSC tsarin, duk da a baya ake soki yadda ake ma rikitarwa ga talakawa da kuma a kan-saka farashi ya zama babban iyali tsarin, shi ne gwada da sauwaqaqqiya da aka farashi daidai-daidai idan aka kwatanta da na yanzu duniya da ya fi used tsarin, da DVB.

Har ila yau, da ATSC sigina, Abin mamaki, ne mafi iya al'amurra da da canje-canje a rediyo yaduwa yanayi idan aka kwatanta da na likes na DVB-T da kuma ISDB-T. Su ne ATSC iya canza ta sassa irin su da kuskure gyara halaye, code rates, da randomizer, da kuma interleaver hanya, yana iya zama ma yafi taushi. Ko da kuwa irin wannan gyarawa saituna, shi ne har yanzu sturdy a karkashin daban-daban yanayi.

Yankuna Amfani ATSC

Amirka
Argentina
Bahamas
Bermuda
Canada
Kolumbia
Chile
Guatemala
Honduras
Mexico
Peru
Amurka

Asia / Pacific
American Samoa
Guam
Tsibiran Arewacin Mariana
Koriya ta Kudu

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