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href="http://www.cdcfah.com/zh/"><span>展會信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="nrogszg" class="twoCol"><div id="yx8wdam" class="page-proshow clearfix"><p class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_jydq/">家用電器</a>?<a href="http://www.cdcfah.com/cp/second-jydq_dianshiji/">電視機</a>?<a href="http://www.cdcfah.com/cp/third-dianshiji_qtdsj/">其他電視機</a>?湖南智能電視系統(tǒng)升級 **** 上海熊貝信息技術(shù)供應(yīng)</p><div id="lvx7bd3" class="leftbox clearfix"><h1>湖南智能電視系統(tǒng)升級 **** 上海熊貝信息技術(shù)供應(yīng)</h1><div id="48vk3qp" class="proBig"><div id="d3s7nu9" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361363894453125/8741673.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="9negif4" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361363894453125/8741673.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fmdf2ld" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>湖南智能電視系統(tǒng)升級,電視系統(tǒng)工程</p><p><span>***更新：</span>2020-10-21 01:23:42</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="smzwdko" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海熊貝信息技術(shù)有限公司</a></p><p><span>聯(lián)系人：</span>唐繼兵</p><p><span>郵箱: </span>tangjibing988428@163.com</p><p><span>電話: </span>19901672612</p><p><span>傳真: </span>199_</p><p><span>網(wǎng)址: </span>http://www.shxiongbei.com</p><p><span>手機: </span>199-0167</p><p><span>地址: </span>青村鎮(zhèn)青村南路355號5幢135室</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="m3waho9" class="page-proshow02"><p class="title">詳細說明</p><div id="o87xzmb" class="box"><p><p style="text-indent:25px">有線電視系統(tǒng)工程的基礎(chǔ)知識：分支分配器：（1）分支器：BR一分支符號:INOUT(插入損耗)；A:插入損耗:是信號從干線輸入端到干線輸出端之間的傳輸損耗，即輸入信號電平(dB)與輸出信號電平(dB)之差,用dB表示。B:分支損耗:是信號從干線輸入端到分支輸出端之間的損耗，即干線輸入端電平(dB)與分支端輸出電平(dB)之差,用dB表示，湖南智能電視系統(tǒng)升級。C:分支損耗與插入損耗之間的關(guān)系是:分支損耗大，則插入損耗小;分支損耗小，則插入損耗大，湖南智能電視系統(tǒng)升級，湖南智能電視系統(tǒng)升級。D:分支口與插入損耗之間的關(guān)系是:分支口越多，插入損耗越大。我們實際上設(shè)計中通常按照2DB來計插入損耗。智能電視系統(tǒng)工程具備開放式操作系統(tǒng)與芯片。湖南智能電視系統(tǒng)升級</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南智能電視系統(tǒng)升級,電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361363894453125/8741673.png"></div><p style="text-indent:25px">智能電視工程系統(tǒng)的技術(shù)：軟件和應(yīng)用。由于智能電視的大屏特點以及與手機輸入方式的差別，如果要開發(fā)產(chǎn)品，必須針對它的輸入特點、操作方式與觀看方式來進行。智能電視應(yīng)用開發(fā)剛起步，產(chǎn)業(yè)生態(tài)尚未建立，國內(nèi)廠商應(yīng)用開發(fā)主要以移植和適配智能手機應(yīng)用為主，這需要做顯示技術(shù)適配、控制技術(shù)適配、多媒體框架適配等工作。專門針對電視業(yè)務(wù)的應(yīng)用主要集中在視頻類。因此，智能電視應(yīng)用存在“碎片化”的問題，業(yè)內(nèi)需要統(tǒng)一的應(yīng)用技術(shù)標準。智能電視開發(fā)各家標準不一樣，同一個應(yīng)用在不同品牌終端上存在兼容性問題。四川互動電視系統(tǒng)智能電視使用的智能操作系統(tǒng)工程可大體分為Android、Windows、iOS及企業(yè)自建系統(tǒng)這四大類。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南智能電視系統(tǒng)升級,電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364331757813/7386371.png"></div><p style="text-indent:25px">有線電視系統(tǒng)工程的基礎(chǔ)知識：常用有線電視器材。1、電纜：型號:常用電纜；75-5；75-7；75-9；75-12；發(fā)泡:單護發(fā)泡、雙護發(fā)泡；類型:發(fā)泡電纜、耦芯電纜、進口電纜；特點:頻率越高，損耗越多。2、放大器(高電平放大器、中電平放大器、低電平放大器)；A:高電平放大器用于天線放大器，用戶放大器，增益大在40dB以上，信噪比較差，輸入低60dB；特點:低輸入，高輸出；B:中電平放大器用在支干線上，增益在25-30dB，如KA5134，信噪比較好。C:低電平放大器用在主干線上，增益在18-25dB，信噪比較好。</p><p style="text-indent:25px">電視系統(tǒng)工程的量化：將幅度連續(xù)信號轉(zhuǎn)換為幅度離散的信號，即幅度離散化。電視系統(tǒng)工程通過采樣，把模擬信號變?yōu)闀r間上離散的脈沖信號。這些脈沖信號的幅度仍然是模擬的，因此還必須對模擬幅度進行離散化處理，才能用數(shù)碼來表示其幅值。這種對幅值進行分級，并按每級進行舍零取整的過程叫作量化。采樣頻率越高，量化比特數(shù)越大，數(shù)碼率就越高，所需傳輸設(shè)施的帶寬則越寬。在目前各廠商生產(chǎn)的數(shù)字化視頻設(shè)備中，較高的量化比特數(shù)是12。電視系統(tǒng)工程能運行操作系統(tǒng)和眾多應(yīng)用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖南智能電視系統(tǒng)升級,電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364081054688/8057903.png"></div><p style="text-indent:25px">電視系統(tǒng)工程的編碼壓縮方法：差值脈沖編碼調(diào)制。標準數(shù)字電視采用的是主類和主級。概括地說，圖像壓縮的原理是利用了圖像中的兩種特性：空間相關(guān)性和時間相關(guān)性。一幀圖像內(nèi)的任何一個場景都是由若干像素點構(gòu)成的，因此一個像素通常與它周圍的某些像素在亮度和色度上存在一定的關(guān)系，這種關(guān)系叫做空間相關(guān)性；一個節(jié)目中的一個情節(jié)常常由若干幀連續(xù)圖像組成的圖像序列構(gòu)成，一個圖像序列中前后幀圖像間也存在一定的關(guān)系，這種關(guān)系叫做時間相關(guān)性。這兩種相關(guān)性使得圖像中存在大量的冗余信息。如果我們能將這些冗余信息去除，只傳輸少量非相關(guān)信息，就可以極大節(jié)省傳輸頻帶。而接收機利用這些非相關(guān)信息，按照一定的解碼算法，可以在保證一定的圖像質(zhì)量的前提下恢復(fù)原始圖像。一個好的壓縮編碼方案就是能夠較大限度地去除圖像中的冗余信息。電視系統(tǒng)工程可以采用糾錯編碼技術(shù)提高電視機的抗噪聲干擾能力。湖南智能電視系統(tǒng)升級</p><p style="text-indent:25px">電視系統(tǒng)工程在國內(nèi)要獲得重大發(fā)展。湖南智能電視系統(tǒng)升級</p><p style="text-indent:25px">智能電視系統(tǒng)工程的優(yōu)點：1、智能電視具有網(wǎng)絡(luò)搜索、IP電視、視頻點播(VOD)、數(shù)字音樂、網(wǎng)絡(luò)新聞、網(wǎng)絡(luò)視頻電話以及網(wǎng)絡(luò)游戲等各種應(yīng)用服務(wù)；2、在成為繼計算機、手機之后的第三種信息訪問終端，用戶可隨時訪問自己需要的信息；3、電視機也將成為一種智能設(shè)備，實現(xiàn)電視、網(wǎng)絡(luò)和程序之間跨平臺搜索；4、智能電視還將是一個“娛樂中心”，用戶可以搜索電視頻道、錄制電視節(jié)目、能夠播放衛(wèi)星和有線電視節(jié)目以及網(wǎng)絡(luò)視頻。5、具備全新的遙控裝置，并且可以和各種移動終端鏈接互動。湖南智能電視系統(tǒng)升級</p><p style="text-indent:25px">上海熊貝信息技術(shù)有限公司是一家從事計算機信息科技領(lǐng)域內(nèi)的技術(shù)開發(fā)、技術(shù)咨詢、技術(shù)服務(wù)、技術(shù)轉(zhuǎn)讓，弱電工程施工，通訊建設(shè)工程施工，電子與智能化建設(shè)工程專業(yè)施工，綜合布線，計算機網(wǎng)絡(luò)工程施工，設(shè)計、制作、代理。電視系統(tǒng)網(wǎng)絡(luò)搭建，監(jiān)控安防產(chǎn)品的設(shè)計搭建。的公司，是一家集研發(fā)、設(shè)計、生產(chǎn)和銷售為一體的專業(yè)化公司。上海熊貝深耕行業(yè)多年，始終以客戶的需求為向?qū)В瑸榭蛻籼峁?**的IPTV電視系統(tǒng)，監(jiān)控系統(tǒng)，弱電工程，。上海熊貝不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺，以應(yīng)用為重點，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價值，提供更優(yōu)服務(wù)。上海熊貝始終關(guān)注安全、防護行業(yè)。滿足市場需求，提高產(chǎn)品價值，是我們前行的力量。</p></p><br /><p>文章來源地址: 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