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tv system analog fundamentaly
01.rar
  • _TV_Analógica
  • Tema 3 - Parte 2 - Fundamentos Básicos de la TV Analógica Color ..pdf
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<html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta charset="utf-8"> <meta name="generator" content="pdf2htmlEX"> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <link rel="stylesheet" href="https://static.pudn.com/base/css/base.min.css"> <link rel="stylesheet" href="https://static.pudn.com/base/css/fancy.min.css"> <link rel="stylesheet" href="https://static.pudn.com/prod/directory_preview_static/622baad715da9b288b528154/raw.css"> <script src="https://static.pudn.com/base/js/compatibility.min.js"></script> <script src="https://static.pudn.com/base/js/pdf2htmlEX.min.js"></script> <script> try{ pdf2htmlEX.defaultViewer = new pdf2htmlEX.Viewer({}); }catch(e){} </script> <title></title> </head> <body> <div id="sidebar" style="display: none"> <div id="outline"> </div> </div> <div id="pf1" class="pf w0 h0" data-page-no="1"><div class="pc pc1 w0 h0"><img class="bi x0 y0 w1 h1" alt="" src="https://static.pudn.com/prod/directory_preview_static/622baad715da9b288b528154/bg1.jpg"><div class="t m0 x1 h2 y1 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m1 x2 h3 y2 ff2 fs1 fc0 sc0 ls0 ws0"><span class="fc2 sc0">&#58880;</span><span class="_ _0"> </span><span class="fc2 sc0">&#58880;</span><span class="_ _1"> </span><span class="fc2 sc0">&#58881;</span><span class="_ _2"> </span><span class="fc2 sc0">&#58882;&#58884;&#58883;&#58886;&#58885;&#58888;&#58887;&#58890;&#58889;&#58891;&#58880;</span><span class="_ _0"> </span><span class="fc2 sc0">&#58892;&#58888;&#58893;&#58894;&#58880;</span><span class="_ _1"> </span><span class="fc2 sc0">&#58892;&#58890;&#58895;&#58897;&#58896;&#58899;&#58898;&#58900;&#58882;&#58888;&#58901;&#58888;&#58902;&#58903;&#58885;&#58904;&#58896;&#58890;&#58905;</span><span class="_ _0"> </span><span class="fc2 sc0">&#58880;</span><span class="_ _1"> </span><span class="fc2 sc0">&#58892;&#58907;&#58906;</span><span class="_ _3"> </span><span class="fc2 sc0">&#58908;&#58899;&#58909;&#58890;&#58910;</span><span class="_ _4"> </span><span class="fc2 sc0">&#58911;</span><span class="_ _5"> </span><span class="fc2 sc0">&#58911;&#58899;&#58911;! "&#58911;&#58899;&#58911;! </span><span class="_ _0"> </span><span class="fc2 sc0">&#58901;&#58890;#&#58899;#&#58899;$</span></div><div class="t m0 x2 h2 y3 ff1 fs0 fc0 sc0 ls0 ws0"> </div><div class="t m2 x3 h4 y4 ff3 fs2 fc0 sc0 ls0 ws0">TTI &#8211; Apuntes Tema 3 </div><div class="t m3 x4 h5 y5 ff3 fs3 fc1 sc0 ls0 ws0">Parte 2&#170;.- Fundamentos B&#225;sicos de Televisi&#243;n <span class="_ _6"></span>A<span class="_ _7"></span>nal&#243;gica COLOR </div><div class="t m3 x2 h5 y6 ff3 fs3 fc1 sc0 ls0 ws0"> </div><div class="t m3 x2 h5 y7 ff3 fs3 fc1 sc0 ls0 ws0">1. <span class="_ _8"></span>Introducci&#243;n </div><div class="t m4 x5 h6 y8 ff4 fs4 fc1 sc0 ls0 ws0"> </div><div class="t m4 x2 h6 y9 ff4 fs4 fc1 sc0 ls0 ws0">Tras <span class="_ _0"> </span>adquirir <span class="_ _0"> </span>en <span class="_ _3"> </span>la <span class="_ _0"> </span>primera <span class="_ _0"> </span>par<span class="_ _7"></span>te <span class="_ _0"> </span>de <span class="_ _0"> </span>es<span class="_ _7"></span>te <span class="_ _0"> </span>cap&#237;<span class="_ _7"></span>tulo <span class="_ _0"> </span>todos <span class="_ _0"> </span>los <span class="_ _3"> </span>conocimientos <span class="_ _0"> </span>b&#225;sicos<span class="_ _7"></span> </div><div class="t m4 x2 h6 ya ff4 fs4 fc1 sc0 ls0 ws0">indispensable<span class="_ _7"></span>s <span class="_ _1"> </span>sobre <span class="_ _1"> </span>el <span class="_"> </span>funciona<span class="_ _7"></span>miento <span class="_ _1"> </span>de <span class="_ _1"> </span>los <span class="_ _1"> </span>sistemas <span class="_ _1"> </span>de <span class="_"> </span>tel<span class="_ _7"></span>evisi&#243;n <span class="_ _1"> </span>en <span class="_ _1"> </span>blanco <span class="_ _1"> </span>y </div><div class="t m4 x2 h6 yb ff4 fs4 fc1 sc0 ls0 ws0">negro, <span class="_ _0"> </span>abordare<span class="_ _7"></span>mos <span class="_ _0"> </span>en<span class="_ _7"></span> <span class="_ _0"> </span>la <span class="_ _3"> </span>pr<span class="_ _6"></span>esente <span class="_ _3"> </span>parte <span class="_ _0"> </span>la <span class="_ _0"> </span>introducci&#243;n <span class="_ _3"> </span>del <span class="_ _0"> </span>color <span class="_ _0"> </span>(<span class="_ _7"></span>componente <span class="_ _3"> </span>de </div><div class="t m4 x2 h6 yc ff4 fs4 fc1 sc0 ls0 ws0">crominancia) en las im&#225;<span class="_ _7"></span>genes representada<span class="_ _7"></span>s por dichos siste<span class="_ _7"></span>mas. </div><div class="t m4 x2 h6 yd ff4 fs4 fc1 sc0 ls0 ws0"> </div><div class="t m4 x2 h6 ye ff4 fs4 fc1 sc0 ls0 ws0">Dicho <span class="_ _6"></span>cambio, <span class="_ _8"></span>signific&#243; <span class="_ _6"></span>en <span class="_ _8"></span>su <span class="_ _8"></span>d&#237;<span class="_ _7"></span>a <span class="_ _6"></span>una <span class="_ _8"></span>aut&#233;ntica <span class="_ _8"></span>rev<span class="_ _7"></span>oluci&#243;n <span class="_ _6"></span>que <span class="_ _8"></span>hasta <span class="_ _8"></span>el <span class="_ _6"></span>d&#237;a <span class="_ _6"></span>de <span class="_ _8"></span>hoy <span class="_ _8"></span>se </div><div class="t m4 x2 h6 yf ff4 fs4 fc1 sc0 ls0 ws0">ha <span class="_ _8"></span>extendi<span class="_ _7"></span>do <span class="_ _8"></span>a <span class="_ _8"></span>la <span class="_ _6"></span>g<span class="_ _6"></span>ran <span class="_ _8"></span>mayor&#237;<span class="_ _7"></span>a <span class="_ _8"></span>de <span class="_ _8"></span>los <span class="_ _8"></span>hogares <span class="_ _8"></span>de<span class="_ _7"></span> <span class="_ _8"></span>los <span class="_ _8"></span>pa&#237;<span class="_ _7"></span>ses <span class="_ _8"></span>civiliza<span class="_ _7"></span>dos, <span class="_ _8"></span>donde <span class="_ _8"></span>la <span class="_ _8"></span>TV<span class="_ _7"></span> </div><div class="t m4 x2 h6 y10 ff4 fs4 fc1 sc0 ls0 ws0">es el medio de difusi&#243;<span class="_ _7"></span>n con mayor &#237;n<span class="_ _7"></span>dice de penetraci&#243;n. </div><div class="t m4 x2 h6 y11 ff4 fs4 fc1 sc0 ls0 ws0"> </div><div class="t m3 x2 h5 y12 ff3 fs3 fc1 sc0 ls0 ws0">2. <span class="_ _8"></span>Tratamiento del Color <span class="_ _6"></span>y<span class="_ _7"></span> Cambios en la captaci&#243;n de <span class="_ _6"></span>la imagen </div><div class="t m3 x2 h5 y13 ff3 fs3 fc1 sc0 ls0 ws0"> </div><div class="t m4 x2 h6 y14 ff4 fs4 fc1 sc0 ls0 ws0">La introducci&#243;n del color en la imagen, tal y como se estudi&#243; a trav&#233;s de la colorimet<span class="_ _7"></span>r&#237;a </div><div class="t m4 x2 h6 y15 ff4 fs4 fc1 sc0 ls0 ws0">en <span class="_ _8"></span>el<span class="_ _7"></span> <span class="_ _8"></span>cap&#237;<span class="_ _7"></span>tulo <span class="_ _8"></span>1, <span class="_ _8"></span>consi<span class="_ _7"></span>ste <span class="_ _8"></span>en <span class="_ _6"></span>ampliar <span class="_ _8"></span>el <span class="_ _8"></span>espa<span class="_ _7"></span>cio <span class="_ _8"></span>de <span class="_ _6"></span>represent<span class="_ _6"></span>aci&#243;n <span class="_ _6"></span>de <span class="_ _8"></span>las <span class="_ _6"></span>sensaciones </div><div class="t m4 x2 h6 y16 ff4 fs4 fc1 sc0 ls0 ws0">visuale<span class="_ _7"></span>s en dos dimensiones adiciona<span class="_ _7"></span>les. </div><div class="t m4 x2 h6 y17 ff4 fs4 fc1 sc0 ls0 ws0"> </div><div class="t m4 x2 h6 y18 ff4 fs4 fc1 sc0 ls0 ws0">B&#225;sicamente <span class="_ _0"> </span>consisti<span class="_ _7"></span>r&#237;a <span class="_ _0"> </span>en <span class="_ _3"> </span>a&#241;adir <span class="_ _0"> </span>a <span class="_ _0"> </span>la <span class="_ _0"> </span>ya <span class="_ _0"> </span>conocida <span class="_ _0"> </span>va<span class="_ _7"></span>riable <span class="_ _0"> </span>brillo <span class="_ _0"> </span>o <span class="_ _0"> </span>luminancia <span class="_ _3"> </span>(Y) </div><div class="t m4 x2 h6 y19 ff4 fs4 fc1 sc0 ls0 ws0">otras <span class="_ _2"></span>dos <span class="_ _2"></span>variab<span class="_ _7"></span>les <span class="_ _2"></span>que <span class="_ _2"></span>aportasen <span class="_ _8"></span>la <span class="_ _2"></span>informaci&#243;n <span class="_ _2"></span>de <span class="_ _8"></span>color <span class="_ _2"></span>asociada <span class="_ _2"></span>a <span class="_ _2"></span>la <span class="_ _2"></span>anterior, <span class="_ _2"></span>y <span class="_ _8"></span>a </div><div class="t m4 x2 h6 y1a ff4 fs4 fc1 sc0 ls0 ws0">las que en conjunto llamaremos crominancia (C[C</div><div class="t m5 x6 h7 y1b ff4 fs5 fc1 sc0 ls0 ws0">1</div><div class="t m4 x7 h6 y1a ff4 fs4 fc1 sc0 ls0 ws0">,C</div><div class="t m5 x8 h7 y1b ff4 fs5 fc1 sc0 ls0 ws0">2</div><div class="t m4 x9 h6 y1a ff4 fs4 fc1 sc0 ls0 ws0">]). La inf<span class="_ _6"></span>ormaci&#243;n aportada por la<span class="_ _7"></span> </div><div class="t m4 x2 h6 y1c ff4 fs4 fc1 sc0 ls0 ws0">variables <span class="_ _2"></span>que <span class="_ _2"></span>componen <span class="_ _2"></span>la <span class="_ _9"></span>crominancia <span class="_ _2"></span>representar&#225; <span class="_ _2"></span>el <span class="_ _9"></span>tono <span class="_ _2"></span>o <span class="_ _9"></span>matiz <span class="_ _2"></span>de <span class="_ _2"></span>la <span class="_ _9"></span>radiaci&#243;n </div><div class="t m4 x2 h6 y1d ff4 fs4 fc1 sc0 ls0 ws0">luminosa y la saturaci&#243;n<span class="_ _7"></span> correspondien<span class="_ _7"></span>tes a la misma. </div><div class="t m4 x2 h6 y1e ff4 fs4 fc1 sc0 ls0 ws0"> </div><div class="t m4 x2 h6 y1f ff4 fs4 fc1 sc0 ls0 ws0">La conclusi&#243;n de todo este proceso es que el video asociado a una imagen en color se </div><div class="t m4 x2 h6 y20 ff4 fs4 fc1 sc0 ls0 ws0">representa <span class="_ _8"></span>m<span class="_ _6"></span>edian<span class="_ _7"></span>te <span class="_ _2"></span>tres <span class="_ _8"></span>variables <span class="_ _8"></span>en <span class="_ _2"></span>vez <span class="_ _2"></span>de <span class="_ _8"></span>u<span class="_ _6"></span>na, <span class="_ _2"></span>lo <span class="_ _8"></span>cual <span class="_ _2"></span>supone <span class="_ _2"></span>ampliar <span class="_ _8"></span>el <span class="_ _2"></span>espacio </div><div class="t m4 x2 h6 y21 ff4 fs4 fc1 sc0 ls0 ws0">de representaci&#243;n uni<span class="_ _7"></span>dimensional (Y) a<span class="_ _7"></span> tridimensional (Y, C</div><div class="t m5 xa h7 y22 ff4 fs5 fc1 sc0 ls0 ws0">1</div><div class="t m4 xb h6 y21 ff4 fs4 fc1 sc0 ls0 ws0">, C</div><div class="t m5 xc h7 y22 ff4 fs5 fc1 sc0 ls0 ws0">2</div><div class="t m4 xd h6 y21 ff4 fs4 fc1 sc0 ls0 ws0">). </div><div class="t m4 x2 h6 y23 ff4 fs4 fc1 sc0 ls0 ws0"> </div><div class="t m4 x2 h6 y24 ff4 fs4 fc1 sc0 ls0 ws0">Respecto <span class="_ _a"> </span>al <span class="_ _a"> </span>proceso <span class="_ _a"> </span>de <span class="_ _a"> </span>captaci&#243;<span class="_ _7"></span>n <span class="_ _a"> </span>de <span class="_ _a"> </span>las <span class="_ _a"> </span>se&#241;ales <span class="_ _a"> </span>de <span class="_ _a"> </span>vi<span class="_ _7"></span>deo, <span class="_ _a"> </span>&#233;ste <span class="_ _a"> </span>supedita <span class="_ _a"> </span>su </div><div class="t m4 x2 h6 y25 ff4 fs4 fc1 sc0 ls0 ws0">funcionamiento <span class="_ _3"> </span>a <span class="_ _3"> </span>la <span class="_ _3"> </span>tricrom&#237;a <span class="_ _9"></span>(le<span class="_ _6"></span>yes <span class="_ _9"></span>de <span class="_ _0"> </span>M<span class="_ _7"></span>axwell <span class="_ _3"> </span> <span class="_ _3"> </span>y <span class="_ _3"> </span>Grassmann), <span class="_ _3"> </span>es <span class="_ _0"> </span>de<span class="_ _7"></span>cir, <span class="_ _3"> </span>pasar&#225; <span class="_ _3"> </span>a </div><div class="t m4 x2 h6 y26 ff4 fs4 fc1 sc0 ls0 ws0">centrarse <span class="_ _b"> </span>en <span class="_ _b"> </span>la <span class="_ _b"> </span>cuanti<span class="_ _7"></span>ficaci&#243;n <span class="_ _b"> </span>de <span class="_ _b"> </span>cualquie<span class="_ _7"></span>r <span class="_ _b"> </span>sensaci&#243;n <span class="_ _b"> </span>luminosa<span class="_ _7"></span> <span class="_ _b"> </span>incidente <span class="_ _b"> </span>en <span class="_ _b"> </span>tres<span class="_ _7"></span> </div><div class="t m4 x2 h6 y27 ff4 fs4 fc1 sc0 ls0 ws0">sensaciones <span class="_ _3"> </span>primarias <span class="_ _0"> </span>de <span class="_ _0"> </span>col<span class="_ _7"></span>or <span class="_ _0"> </span>de <span class="_ _3"> </span>tipo <span class="_ _0"> </span>R, <span class="_ _0"> </span>G <span class="_ _3"> </span>y <span class="_ _0"> </span>B <span class="_ _3"> </span>r<span class="_ _6"></span>espectivamente. <span class="_ _3"> </span>Las <span class="_ _0"> </span>tecnolog&#237;as<span class="_ _7"></span> </div><div class="t m4 x2 h6 y28 ff4 fs4 fc1 sc0 ls0 ws0">empleadas <span class="_ _3"> </span>por <span class="_ _0"> </span>los <span class="_ _0"> </span>di<span class="_ _7"></span>spositiv<span class="_ _7"></span>os <span class="_ _3"> </span>capt<span class="_ _6"></span>adores <span class="_ _3"> </span>se <span class="_ _0"> </span>orientar&#225;n <span class="_ _3"> </span>a <span class="_ _0"> </span>dicha <span class="_ _3"> </span>descomposici&#243;n <span class="_ _3"> </span>o </div><div class="t m4 x2 h6 y29 ff4 fs4 fc1 sc0 ls0 ws0">filtrado <span class="_ _0"> </span>en <span class="_ _0"> </span>co<span class="_ _7"></span>mponentes, <span class="_ _0"> </span>cuy<span class="_ _7"></span>os <span class="_ _0"> </span>val<span class="_ _7"></span>ores <span class="_ _0"> </span>caracter&#237;<span class="_ _7"></span>sticos <span class="_ _0"> </span>deben <span class="_ _0"> </span>ser <span class="_ _3"> </span>universales <span class="_ _0"> </span>y <span class="_ _0"> </span>por </div><div class="t m4 x2 h6 y2a ff4 fs4 fc1 sc0 ls0 ws0">&#250;ltimo a su transducci<span class="_ _7"></span>&#243;n en valo<span class="_ _7"></span>res el&#233;ctricos. </div><div class="t m4 x2 h6 y2b ff4 fs4 fc1 sc0 ls0 ws0"> </div><div class="t m4 xe h6 y2c ff4 fs4 fc1 sc0 ls0 ws0"> </div><div class="t m6 x1 h8 y2d ff4 fs6 fc1 sc0 ls0 ws0"> </div><div class="t m6 xf h8 y2e ff4 fs6 fc1 sc0 ls0 ws0">Figura 1. Esquema de captaci&#243;n de la luz. Descomposici&#243;<span class="_ _6"></span>n R<span class="_ _7"></span>GB. </div></div><div class="pi" data-data='{"ctm":[1.611639,0.000000,0.000000,1.611639,0.000000,0.000000]}'></div></div> </body> </html>
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