Ikhebula le-HDMI elincane le-HDMI eliyi-A ukuya kwelesokudla

Ukuhlaziywa okuyisisekelo kwekhebula le-hdmi

I-HDMI iyi-interface yedijithali ephelele yemikhakha ye-elekthronikhi yabathengi kanye ne-PC. Ingadlulisela izimpawu zomsindo nevidiyo ezingacindezelwe. Ngenxa yokuthi izimpawu zomsindo nevidiyo zidluliselwa kukhebula elifanayo, inani lezintambo ze-interface lenziwe lula kakhulu, futhi zithandwa kakhulu ezintweni zasekhaya kanye ne-PC. Kusukela yavela, i-HDMI ithuthukise izinguqulo eziningana, kusukela ku-HDMI 1.1 kuya ku-HDMI 1.4. Nakuba ukubukeka kwe-interface kungashintshanga, kodwa umsebenzi kanye ne-bandwidth kuthuthukisiwe ngokwekhwalithi. Inguqulo ye-interface ye-HDMI ejwayelekile yi-HDMI 1.3 (A, B, C), kodwa ngokuthandwa kwevidiyo ye-3D, inani elikhulu lamadivayisi e-HDMI 1.4 liyaqaliswa, okuba yimikhiqizo eyinhloko yokukhushulwa kwemindeni ehlukahlukene. I-HDMI 1.4 iletha izici eziningana ezintsha, kufaka phakathi isiteshi se-HDMI Ethernet, isiteshi sokubuyisa umsindo, umsebenzi wokudlala ividiyo we-HDMI 3D, kanye nokusekelwa kwe-4k2k ultra-high-resolution. Ngekhebula, kwakungekho nguqulo ye-HDMI ngaphambili. Isibonelo, izintambo ze-HDMI 1.1 ne-HDMI 1.3 ziyafana, kodwa ku-HDMI 1.4, ikhebula linezinguquko ezithile. Inguqulo ye-HDMI iqukethe izinhlobo ezinhlanu zezintambo, ngayinye inezimpawu zokusebenza ezihlukile kanye nokusebenza. I-HDMI 1.4 ihlukaniswe ngezinguqulo ezinhlanu: i-HDMI ejwayelekile, i-HDMI ejwayelekile ene-Ethernet, i-HDMI yezimoto, i-HDMI yesivinini esiphezulu, kanye ne-HDMI yesivinini esiphezulu ene-Ethernet. Izintambo ze-HDMI ezijwayelekile zisekela i-1080p, kuyilapho ukwesekwa kwe-HDMI yesivinini esiphezulu kufaka phakathi i-4k2k, ividiyo ye-3D, umbala omnyama kanye nobunye ubuchwepheshe bokubonisa obuthuthukisiwe. Lo mugqa empeleni uyinguqulo yangaphambilini ye-HDMI 1.3, futhi izidingo zabo ze-bandwidth zingaphakathi kwe-bandwidth enikezwe yi-HDMI 1.3. Kodwa i-HDMI yesivinini esiphezulu nomsebenzi we-Ethernet nayo inesiteshi sedatha esizinikele, okungukuthi isiteshi se-HDMI Ethernet esinikeza umsebenzi wenethiwekhi phakathi kwamadivayisi. Isakhiwo sekhebula sishintshile, njengoba kuzoshiwo kamuva. Izindinganiso ze-HDMI zichaza namalebula okuqinisekisa alezi zinhlobo ezinhlanu zezintambo. Kulesi sibonelo sokubuyekezwa, sikhethe nezinye izintambo ezibizwa nge-HDMI 1.4 version, kodwa azikho kuzo ezilandele ngokuqinile amazinga e-HDMI. Ngokuvamile isikhombimsebenzisi se-HDMI esivame kakhulu uhlobo A olunobubanzi obungu-13.9mm kanye namaphini ayi-19, kuyilapho kukhona isikhombimsebenzisi esingavamile sohlobo B esinobubanzi obungu-21.2 mm, i-HDMI isebenzisa iziteshi ezine zesignali ezihlukile ze-TMDS ezifanayo, kanti isixhumanisi sokudlulisa sineziteshi zedatha ezi-3 kanye nesiteshi sewashi eli-1. Iziteshi ezintathu zedatha zisetshenziselwa ukudlulisa izimpawu zedatha ezibomvu, eziluhlaza okotshani, neziluhlaza okwesibhakabhaka, kanti isiteshi sesine sisetshenziselwa ukudlulisa iwashi, elimvamisa yewashi layo ingu-1/10 wesilinganiso sedatha. Kusetshenziswa ubuchwepheshe be-TMDS be-HDMI, i-voltage evamile ye-bias yesignali ehlukanisiwe ingu-3.3V, i-port impedance ingu-50 ohm, i-amplitude elinganisiwe igxuma iye ku-500mV(2.8V~ 3.3V ~ 3.3 V), kanye ne-voltage swing amplitude iyahlukahluka kusuka ku-150mV ~ 800mV. Ngaphezu kwalokho, kunezibonakaliso zokuxhumana eziqondiswayo ezidluliselwa ngedatha ye-DDC (isiteshi sedatha yokubonisa) kanye nemigqa yewashi, kanye nezibonakaliso ze-HDCP (ukuvikelwa kwe-copyright yedijithali ephezulu) ku-HDMI. Ibhasi le-DDC liyisihluthulelo sokuhambisana kwe-HDMI.