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1. Entwodiksyon nan HDCP
HDCP (High-bandwidth Digital Content ProtecTIon): High-bandwidth dijital teknoloji pwoteksyon kontni. Epòk la nan HDTV (televizyon definisyon segondè) ap apwoche. Yo nan lòd yo adapte yo ak band la segondè nan HDTV, HDMI te parèt. HDMI se yon wo-definisyon estanda dijital koòdone, li ka bay yon gwo band, transmisyon lossless nan videyo dijital ak siyal odyo. Yo nan lòd yo asire ke siyal la-wo definisyon transmèt pa HDMI oswa DVI pa pral ilegalman anrejistre, yon gwo-band teknoloji dijital pwoteksyon kontni, sètadi HDCP teknoloji, te parèt. Se spesifikasyon HDCP teknik ki te dirije pa Intel. Lè itilizatè yo fè kopi ilegal, teknoloji a pral entèfere ak diminye bon jan kalite a nan imaj yo kopye, kidonk pwoteje kontni an.
HDCP (High-bandwidth Digital Content ProtecTIon Broadband Digital Video Protection) yo itilize pou pwoteje transmisyon HDMI ki pèmèt transmetè yo ak HDMI ki pèmèt reseptè yo. Yo nan lòd pwoteje copyrights, li se tou yo itilize nan endistri a imaj mouvman (tankou FOX, Inivèsèl, Warner Bros, elatriye). Li baze sou HDMI, ki transmèt gwo vitès, segondè-band pwoteksyon dijital kontni. Lòt teknoloji anti-kopi yo pa apwopriye pou HDMI. Pou egzanp, Macrovision se sèlman apwopriye pou siyal analòg, ak DCTP sèlman sipòte 100 ~ 400M Pleasant ak sèlman adapte ak IEEE-1394.
Pou jwenn teknoloji sa a ak pwodwi HDCP ki pèmèt pwodwi yo, ou dwe jwenn yon lisans nan Digital Content ProtecTIon LLC pou jwenn kle aparèy HDCP egzije a. Li inik, yon sèl kle pou chak aparèy.
Estati a peman nan Lisans se jan sa a:
Ou dwe premye jwenn konfimasyon HDCP (AuthenTIcation) anvan HDMI transmisyon done yo ka te pote soti. Pwosesis la se jan sa a:
Lè transmetè a ak reseptè jwenn yon kle aparèy ki valab nan Digital Content Protection LLC, pral gen yon idantifikasyon ki koresponn (KSV) (kle vektè seleksyon).
1) Konfime inisyalizasyon an. Motè kriptografik HDCP nan fen transmèt A jenere yon sekans pseudo-o aza 64-bit An, ansanm ak pwòp KSV li yo (Aksv), epi li transmèt li nan fen k ap resevwa a, ak fen k ap resevwa a transmèt pwòp KSV li yo (Bksv) ak REPEATER ti jan nan fen transmèt la. Reponn.
2) Fen transmèt la itilize Akey ak Bksv pou kalkile Km, ak Lè sa a, Km, REPEATER, An pou jwenn Ks, Mo, R0, ak fen k ap resevwa a itilize Bkey ak Aksv pou kalkile Km ', ak Lè sa a, Km, REPEATER, An pou jwenn Ks ', Mo', Ro '.
3) Lè R0 = R0 ', konfimasyon inisyal HDCP a pase.
2. HDCP pespektiv nan lavni
Franchman pale, byenke HDCP te resevwa atansyon toupatou nan endistri a ak vulgarizasyon li yo se yon konklizyon anile, ki soti nan pèspektiv nan prensip HDCP, pwosesis la pwoteksyon se twò senp, ak pwoteksyon se sèlman reyalize nan pwosesis la transmisyon ekstèn. Sa a se byen limite nan epòk la lè òdinatè yo lajman itilize. , Sa a pa sèlman fè moun santi ke mizisyen yo yo sispèk ki fwod frè lisans segondè. Epi yon fwa li siyal dijital la li menm nan òdinatè a nan yon fòma binè, pwosesis kopi a ka toujou reyalize, epi metòd RIP la menm jan ak DVD videyo disk yo ka itilize pou separasyon.
lòt pwodwi nou an:
Pwofesyonèl pakè ekipman estasyon radyo FM
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es.fmuser.org
it.fmuser.org
fr.fmuser.org
de.fmuser.org
af.fmuser.org -> Afriken
sq.fmuser.org -> Albanyen
ar.fmuser.org -> Arab
hy.fmuser.org -> Armenian
az.fmuser.org -> Azerbaydjan
eu.fmuser.org -> Basque
be.fmuser.org -> Belarisyen
bg.fmuser.org -> Bulgarian
ca.fmuser.org -> Katalan
zh-CN.fmuser.org -> Chinwa (senplifye)
zh-TW.fmuser.org -> Chinwa (Tradisyonèl)
hr.fmuser.org -> Kwoasyen
cs.fmuser.org -> Czech
da.fmuser.org -> Danwa
nl.fmuser.org -> Olandè
et.fmuser.org -> Estonyen
tl.fmuser.org -> Filipino
fi.fmuser.org -> Finnish
fr.fmuser.org -> Franse
gl.fmuser.org -> Galisyen
ka.fmuser.org -> Georgian
de.fmuser.org -> Alman
el.fmuser.org -> Greek
ht.fmuser.org -> Kreyòl ayisyen
iw.fmuser.org -> ebre
hi.fmuser.org -> Hindi
hu.fmuser.org -> Hungarian
is.fmuser.org -> Icelandic
id.fmuser.org -> Endonezyen
ga.fmuser.org -> Ilandè
it.fmuser.org -> Italyen
ja.fmuser.org -> Japonè
ko.fmuser.org -> Koreyen
lv.fmuser.org -> Latvian
lt.fmuser.org -> Lithuanian
mk.fmuser.org -> Masedwan
ms.fmuser.org -> Malay
mt.fmuser.org -> Maltese
no.fmuser.org -> Norwegian
fa.fmuser.org -> Pèsik
pl.fmuser.org -> Polonè
pt.fmuser.org -> Pòtigè
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vi.fmuser.org -> Vietnamese
cy.fmuser.org -> Welsh
yi.fmuser.org -> Yiddish
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