ITU-R BT 1202 FRENCH-1995 DISPLAYS FOR FUTURE TELEVISION SYSTEMS《未来电视系统显示器》.pdf

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1、 Rec. UIT-R BT.1202 1 RECOMMANDATION UIT-R BT.1202*crans pour les futurs systmes de tlvision*(1995) LAssemble des radiocommunications de lUIT, considrant a) que des Recommandations concernant les systmes de production et de diffusion de signaux de tlvision large format dimage et plusieurs niveaux de

2、 dfinition ont t adoptes (voir les Recommandations UIT-R BT.709, UIT-R BT.796 et UIT-R BT.797); b) quil est possible de dfinir plusieurs techniques permettant de prsenter des images de formats diffrents sur des crans pour format large; c) que lutilisation dun mme rapport largeur/hauteur des crans pr

3、sente des avantages prati-ques importants pour les radiodiffuseurs et pour les tlspectateurs; d) que les conversions colorimtriques risquent dtre complexes et de provoquer des dgra-dations prjudiciables; e) que certaines applications grand public exigeront laffichage sur le mme cran dimages de tlvis

4、ion et dimages multimdia/ordinateur; f) quil existe un certain nombre dapplications multimdias et dapplications informatiques qui utiliseront des crans de tlvision; g) que lemploi de dispositifs et de composants communs une vaste gamme dapplications et dactivits offre des avantages conomiques; h) qu

5、e divers types dcrans faisant appel diffrentes technologies seront utiliss et sont ac-tuellement en cours de dveloppement, recommande 1 que les futurs systmes de radiodiffusion reposent sur lutilisation dcrans dont le rapport largeur/hauteur soit de 16/9; 2 que lon parvienne la compatibilit colorimt

6、rique entre diffrents formats. _ *La Commission dtudes 6 des radiocommunications a apport des modifications rdactionnelles cette Recommandation en 2002 conformment aux dispositions de la Rsolution UIT-R 44. *La prsente Recommandation doit tre porte lattention de lOrganisation internationale de normalisation (ISO), de la Commission lectrotechnique internationale (CEI) et de lUIT-T.

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