Kev Taw Qhia Txog Cov Kev Hloov Pauv ntawm HDMI 1.0 mus rau HDMI 2.1 (Ntu 1)

Kev Taw Qhia Txog Cov Kev Hloov Pauv ntawm HDMI 1.0 mus rau HDMI 2.1 (Ntu 1)

Txij li thaum lub ntiaj teb thawj Blu-ray player, Samsung BD-P1000, tau tso tawm xyoo 2006, uas tau siv HDMI, feem ntau ntawm cov Blu-ray players thiab cov khoom siv ua si HD puv ntoob tau nruab nrog HDMI. Txij thaum ntawd los, HDMI tau tsis muaj leej twg tuaj yeem nres thiab tau tswj hwm kev lag luam cable tau ntau xyoo, suav nrog ob qho tib si rau cov neeg siv khoom thiab kev lag luam audio thiab video kis.

Kev hloov pauv ntawm HDMI versions

1.4 thiab 2.0 yog cov feem ntau

2.0a txhawb nqa 4K HDR
HDMI 1.0
Txhawb nqa Blu-ray thiab Full HD 1080/60Hz
HDMI 1.0 tau tso tawm rau lub Kaum Ob Hlis 9, 2002. Nws yog ib qho kev sib txuas lus digital audio/video ib kab. Lub qauv txuas yog raws li DVI thiab siv tib hom ntawv xa video, tab sis xa suab thiab lwm cov ntaub ntawv pabcuam thaum lub sijhawm ntawm cov yeeb yaj kiab. HDMI 1.0 tso cai rau lub moos TMDS siab tshaj plaws ntawm 165 MHz (txhua qhov txuas bandwidth yog 4.95 Gbit / s), tib yam li DVI. Nws txhais ob hom connectors hu ua A-hom thiab B-hom, uas siv cov pinouts raws li ib qho txuas DVI-D thiab dual-link DVI-D connectors, txawm hais tias B-hom connector yeej tsis tau siv hauv cov khoom lag luam. HDMI 1.0 siv 8 b/10 b encoding rau kev xa video, muab nws cov video bandwidth ntawm 3.96 Gbit / s (1920 × 1080 lossis 1920 × 1080 60Hz) thiab 8-channel LPCM / 192 kHz / 24-bit audio. HDMI 1.0 xav tau kev txhawb nqa rau RGB video, thiab xaiv tau txhawb nqa Y′CBCR 4:4:4 thiab 4:2:2 (yuam yog tias lub cuab yeej txhawb nqa Y′CBCR lwm cov interfaces). Qhov tob xim ntawm 10 bpc (30 bits/pixel) lossis 12 bpc (36 bits/pixel) tso cai rau kev siv 4:2:2 subsampling, tab sis tsuas yog 8 bpc (24 bits/pixel) qhov tob xim raug tso cai thaum siv RGB lossis Y′CBCR 4:4:4. Tsuas yog Rec. 601 thiab Rec. 709 qhov chaw xim raug txhawb nqa. HDMI 1.0 tsuas yog tso cai rau cov hom ntawv video tshwj xeeb uas tau teev tseg, suav nrog txhua hom ntawv txhais hauv EIA/CEA-861-B thiab qee hom ntawv lwm yam teev nyob rau hauv HDMI specification. Txhua qhov chaw HDMI/receivers yuav tsum muaj peev xwm xa/txais cov yeeb yaj kiab DVI ib qho txuas thiab ua raws li DVI specification tag nrho.
Qhov HDMI version thaum ntxov tshaj plaws, uas tau tso tawm thaum Lub Kaum Ob Hlis 2002, tuaj yeem hais tias tau tsim tshwj xeeb rau cov software HD tag nrho xws li Blu-ray thaum lub sijhawm ntawd. Nws lub ntsiab lus tseem ceeb yog kev sib koom ua ke ntawm kev xa video thiab suab tib lub sijhawm. Piv rau cov interfaces xa video ntshiab ntawm cov khoos phis tawj xws li DVI thiab DisplayPort, nws zoo dua rau cov khoom siv suab-pom. HDMI 1.0 twb txhawb nqa DVD thiab Blu-ray video, nrog rau qhov siab tshaj plaws ntawm 4.95 Gbps, uas 3.96 Gbps yog siv rau kev xa cov kwj video, muaj peev xwm txhawb nqa 1080/60p lossis UXGA daws teeb meem; hais txog suab, nws txhawb nqa 8-channel LPCM 24bit / 192kHz, txhais tau tias nws twb tau mus txog ntau-channel Hi-Res audio. Hauv kev sib piv ntawm cov lus qhia cable thaum lub sijhawm ntawd, nws muaj zog heev.

HDMI 1.1

HDMI 1.1 tau tso tawm rau lub Tsib Hlis 20, 2004, thiab ntxiv kev txhawb nqa rau DVD-Suab.
Nws tau tso tawm thaum lub Tsib Hlis 2004 thiab suav nrog kev txhawb nqa tshiab rau DVD-Audio. DVD-Audio khaws cia 16-bit/44.1kHz txog 24-bit/192kHz PCM suab paj nruag ntawm DVD discs. Thaum xub thawj nws tau npaj siab los ua tus hloov CD ib yam li SACD, tab sis hmoov tsis zoo, ob hom ntawv tsis tau txais kev nyiam dav dav.
HDMI 1.2
Kev txhawb nqa rau SACD
Nws tau tso tawm rau lub Yim Hli 2005, ntxiv kev txhawb nqa rau 1-bit audio, tseem hu ua SACD audio streaming, txog li 8 channel. DMI CEC tso cai rau ib qho chaw taws teeb tswj hwm txhua yam khoom siv sib xws, uas yooj yim heev.
HDMI 1.2 tau tso tawm rau lub Yim Hli 8, 2005, thiab ntxiv qhov kev xaiv suab me ntsis rau Super Audio CD, txog li 8 txoj kab. Yuav kom HDMI tsim nyog dua rau kev siv rau ntawm cov khoom siv PC, version 1.2 kuj tshem tawm qhov yuav tsum tau siv cov hom ntawv txhawb nqa tshwj xeeb. Nws ua rau cov chaw tsim khoom muaj peev xwm tsim cov hom ntawv tshwj xeeb rau tus neeg muab khoom, tso cai rau txhua qhov kev daws teeb meem thiab tus nqi refresh, tsis txwv rau cov npe teev tseg ntawm cov hom ntawv txhawb nqa. Tsis tas li ntawd, nws ntxiv kev txhawb nqa tshwj xeeb rau qee cov hom ntawv tshiab suav nrog 720p ntawm 100 thiab 120Hz thiab cov kev cai txhawb nqa hom ntawv pixel so, yog li cov peev txheej nrog tsuas yog RGB tso zis hauv zos (PC) yuav tsis tas yuav txhawb nqa Y′CBCR tso zis.