HDMI interface thiab specifications
Cov ntsiab lus koom nrog yog:
TMDS: (Lub Sijhawm Tsawg Tshaj Plaws Qhov Sib Txawv) Kev xa cov teeb liab sib txawv tsawg tshaj plaws, yog txoj kev xa cov teeb liab sib txawv, HDMI teeb liab kis tau txais yuav txoj kev no.
HDCP: (Kev Tiv Thaiv Cov Ntsiab Lus Digital Uas Muaj Bandwidth Siab) Kev tiv thaiv cov ntsiab lus digital uas muaj Bandwidth Siab.
DDC: Tso Saib Cov Ntaub Ntawv Channel
CEC: Kev Tswj Xyuas Khoom Siv Hluav Taws Xob Rau Cov Neeg Siv Khoom
EDID: Cov Ntaub Ntawv Txheeb Xyuas Kev Tso Saib Ntxiv
E-EDIO: Cov Ntaub Ntawv Txheeb Xyuas Kev Nthuav Dav Ntxiv
Lawv sawv cev hauv cov txheej txheem kis ntawm HDMI yog kwv yees li nram no:
Kev tsim kho HDMI version
HDMI 1.0
HDMI 1.0 version tau qhia rau lub Kaum Ob Hlis 2002, nws qhov tshwj xeeb tshaj plaws yog kev koom ua ke ntawm cov suab thiab digital interface, thiab tom qab ntawd PC interface nrov dua DVI interface piv rau, nws yog qib siab dua thiab yooj yim dua.
HDMI version 1.0 txhawb nqa kev tshaj tawm video los ntawm DVD mus rau Blu-ray hom ntawv, thiab muaj CEC (kev tswj hwm khoom siv hluav taws xob), uas yog, hauv daim ntawv thov, koj tuaj yeem tsim kev sib txuas ntawm txhua lub cuab yeej txuas nrog, pawg khoom siv muaj kev tswj hwm yooj yim dua.
HDMI 1.1
Kev xam phaj rau HDMI version 1.1 thaum lub Tsib Hlis 2004. Ntxiv kev txhawb nqa rau DVD audio.
HDMI 1.2
HDMI 1.2 version tau tso tawm rau lub Yim Hli 2005, feem ntau yog siv los daws qhov teeb meem ntawm HDMI 1.1 uas tsis tshua muaj, thiab muaj teeb meem sib xws nrog cov khoom siv computer. 1.2 version ntawm lub moos pixel khiav ntawm 165 MHz thiab cov ntaub ntawv ntim ncav cuag 4.95 Gbps, yog li 1080 P. Nws tuaj yeem xav tias version 1.2 daws qhov teeb meem 1080P ntawm TV thiab qhov teeb meem ntawm lub computer.
HDMI 1.3
Thaum Lub Rau Hli 2006, qhov hloov tshiab HDMI 1.3 tau coj qhov kev hloov pauv loj tshaj plaws rau qhov zaus ntawm ib qho txuas mus rau 340 MHz. Qhov no yuav ua rau cov LCD TVs no tau txais kev xa cov ntaub ntawv 10.2Gbps, thiab cov kab 1.3 yog tsim los ntawm plaub khub ntawm cov channel xa, uas ib khub ntawm cov channel yog lub moos channel, thiab peb khub ntxiv yog TMDS channel (txo qhov kev xa cov teeb liab sib txawv), lawv qhov ceev xa yog 3.4GBPs. Tom qab ntawd 3 khub yog 3 * 3.4 = 10.2 GPBS muaj peev xwm nthuav dav 24-ntsis xim tob uas txhawb nqa los ntawm HDMI1.1 thiab 1.2 versions mus rau 30, 36 thiab 48 bits (RGB lossis YCbCr). HDMI 1.3 txhawb nqa 1080 P; Qee qhov 3D uas tsis xav tau kuj tau txais kev txhawb nqa (kev xav tsis txhawb nqa, tab sis qee qhov ua tau).
HDMI 1.4
HDMI 1.4 version twb txhawb nqa 4K lawm, tab sis nws raug rau 10.2Gbps bandwidth, qhov siab tshaj plaws tsuas yog tuaj yeem ncav cuag 3840 × 2160 kev daws teeb meem thiab 30FPS tus nqi ncej.
HDMI 2.0
Qhov bandwidth ntawm HDMI 2.0 tau nthuav dav mus txog 18Gbps, txhawb nqa kev npaj siv thiab kub plugging, txhawb nqa 3840 × 2160 kev daws teeb meem thiab 50FPS, 60FPS tus nqi ncej. Tib lub sijhawm hauv lub suab txhawb nqa txog li 32 channel, thiab qhov siab tshaj plaws sampling tus nqi ntawm 1536 kHz. HDMI 2.0 tsis txhais cov kab digital tshiab thiab cov connectors, interfaces, yog li nws tuaj yeem tswj hwm qhov rov qab sib xws zoo meej nrog HDMI 1.x, thiab ob hom kab digital uas twb muaj lawm tuaj yeem siv ncaj qha. HDMI 2.0 yuav tsis hloov HDMI 1.x, tab sis raws li qhov kev txhim kho tom kawg, txhua lub cuab yeej los txhawb HDMI 2.0 yuav tsum xub xyuas kom meej tias muaj kev txhawb nqa yooj yim ntawm HDMI 1.x.
Tus qauv muab bandwidth txog li 48Gbps, thiab qhov tshwj xeeb tshaj yog, tus qauv HDMI 2.1 tshiab tam sim no txhawb nqa 7680 × 4320 @ 60Hz thiab 4K @ 120hz. 4 K suav nrog 4096 × 2160 pixels thiab 3840 × 2160 pixels ntawm qhov tseeb 4 K, thaum nyob rau hauv HDMI 2.0 specification, tsuas yog 4 K @ 60Hz yog txhawb nqa.
Hom HDMI Interface:
Hom A HDMI Hom A yog qhov siv dav tshaj plaws Hdmi Cable Nrog 19 tus pin, dav 13.9 hli thiab tuab 4.45 hli. Feem ntau cov TV tiaj tiaj lossis cov khoom siv video, muaj qhov loj me no, Hom A muaj 19 tus pin, dav 13.9 hli, tuab 4.45 hli, thiab tam sim no 99% ntawm cov khoom siv suab thiab video siv hauv lub neej txhua hnub muaj qhov loj me no. Piv txwv li: Blu-ray player, millet box, notebook computer, LCD TV, projector thiab lwm yam.
Hom B HDMI B Hom tsis tshua muaj nyob hauv lub neej. Lub HDMI B connector yog 29 pins thiab dav 21 hli. HDMI B Hom kev xa cov ntaub ntawv muaj peev xwm yuav luag ob npaug ntawm HDMI A Hom thiab sib npaug rau DVI Dual-Link. Vim tias feem ntau cov khoom siv suab thiab video ua haujlwm qis dua 165MHz, thiab zaus ua haujlwm ntawm HDMI B Hom yog siab dua 270MHz, nws yog "nyuaj" dhau hauv kev siv hauv tsev, thiab tam sim no tsuas yog siv rau qee lub sijhawm ua haujlwm, xws li WQXGA 2560 × 1600 kev daws teeb meem.
Hom C HDMI Hom C, feem ntau hu ua Mini HDMI, feem ntau yog tsim los rau cov khoom siv me me. HDMI Hom C kuj siv 19 tus pin, nws qhov loj ntawm 10.42 × 2.4 hli yog ze li ntawm 1/3 me dua Hom A, qhov ntau ntawm daim ntawv thov yog me heev, feem ntau yog siv rau hauv cov khoom siv nqa tau, xws li cov koob yees duab digital, cov neeg ua si nqa tau thiab lwm yam khoom siv.
Hom D HDMI Hom D feem ntau hu ua Micro HDMI. HDMI Hom D yog hom interface tshiab tshaj plaws, me dua me dua. Tus qauv ob kab pin, kuj yog 19 pins, tsuas yog 6.4 hli dav thiab 2.8 hli tuab, zoo ib yam li Mini USB interface. Feem ntau siv rau hauv cov khoom siv me me, tsim nyog dua rau cov khoom siv nqa tau thiab tsheb. Piv txwv li: xov tooj ntawm tes, ntsiav tshuaj, thiab lwm yam.
Hom E (Hom E) HDMI E Hom feem ntau yog siv rau kev xa suab thiab video ntawm cov kab ke lom ze hauv tsheb. Vim yog qhov tsis ruaj khov ntawm qhov chaw sab hauv tsheb, HDMI E Hom yog tsim los kom muaj cov yam ntxwv xws li kev tiv taus av qeeg, kev tiv taus dej noo, kev tiv taus lub zog siab, thiab kev kam rau qhov sib txawv ntawm qhov kub thiab txias. Hauv cov qauv lub cev, kev tsim qauv xauv tshuab tuaj yeem ua kom ntseeg tau tias kev sib cuag ntseeg tau.