數(shù)字電視系統(tǒng)多少錢來電咨詢上海熊貝信息技術(shù)供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="電視系統(tǒng)工程的優(yōu)點(diǎn)：1、可以采用糾錯編碼技術(shù)提高電視機(jī)的抗噪聲干擾能力。2、數(shù)字電路成本低，數(shù)字電視系統(tǒng)多少錢，無需調(diào)整、調(diào)諧，數(shù)字電視系統(tǒng)多少錢，不會老化，所以生產(chǎn)成本降低，維修也容易。3、單向傳播。在進(jìn)行廣播電視數(shù)據(jù)傳播的時候，數(shù)字電視"><meta name="keywords" content="數(shù)字電視系統(tǒng)多少錢,電視系統(tǒng)工程"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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class="current"> 當(dāng)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(jī)</a>?<a href="http://www.cdcfah.com/cp/third-dianshiji_qtdsj/">其他電視機(jī)</a>?數(shù)字電視系統(tǒng)多少錢來電咨詢上海熊貝信息技術(shù)供應(yīng)</p><div id="ayqui8i" class="leftbox clearfix"><h1>數(shù)字電視系統(tǒng)多少錢來電咨詢上海熊貝信息技術(shù)供應(yīng)</h1><div id="ptvkmda" class="proBig"><div id="39oeg7c" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364018642578/1274226.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ae2soax" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364018642578/1274226.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ocz8jbo" 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>數(shù)字電視系統(tǒng)多少錢,電視系統(tǒng)工程</p><p><span>***更新：</span>2020-12-05 03:20:31</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="i3co3cu" 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(jī): </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(dāng)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="f9nf8qn" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="degvhe3" class="box"><p><p style="text-indent:25px">電視系統(tǒng)工程的優(yōu)點(diǎn)：1、可以采用糾錯編碼技術(shù)提高電視機(jī)的抗噪聲干擾能力。2、數(shù)字電路成本低，數(shù)字電視系統(tǒng)多少錢，無需調(diào)整、調(diào)諧，數(shù)字電視系統(tǒng)多少錢，不會老化，所以生產(chǎn)成本降低，維修也容易。3、單向傳播。在進(jìn)行廣播電視數(shù)據(jù)傳播的時候，數(shù)字電視不需要使用許多附帶的其他組播技術(shù)的交換或者路由設(shè)備等等。在傳輸?shù)倪^程中，也不會因?yàn)樾盘査?的用戶較多、覆蓋范圍較廣，數(shù)字電視系統(tǒng)多少錢，而影響傳輸?shù)木W(wǎng)絡(luò)信號穩(wěn)定性。它不會在傳輸中受到網(wǎng)絡(luò)中帶寬壓力的影響，同時也不會被程序員進(jìn)行攻擊。電視的操作系統(tǒng)工程一直以來都是各大企業(yè)大力研發(fā)和投入得非常多的一個項目。數(shù)字電視系統(tǒng)多少錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="數(shù)字電視系統(tǒng)多少錢,電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364018642578/1274226.png"></div><p style="text-indent:25px">電視系統(tǒng)工程的實(shí)用性、可控性：系統(tǒng)能完全適應(yīng)目前及今后的發(fā)展需要，提供符合實(shí)際需求的高效率的應(yīng)用軟件；具有操作界面友好、方便易掌握、日常維護(hù)簡單、容易管理，便于用戶二次開發(fā)等特點(diǎn)。確保整個系統(tǒng)數(shù)據(jù)傳輸速度，使系統(tǒng)具備靈活的拓展能力，并且避免功能以及系統(tǒng)資源的浪費(fèi)。電視系統(tǒng)工程的病房終端機(jī)頂盒具備較強(qiáng)的性能，能夠超清的播放多個科室的手術(shù)直播功能?？梢宰屇宄牧私獾讲∪酸t(yī)治的整個手術(shù)過程。無論是廣電有線電視信號還是衛(wèi)星電視信號，我們的系統(tǒng)均可將其接管，而后快捷調(diào)制頻道頻點(diǎn)，信號傳至病房，終端機(jī)頂盒會自動排序，保證電視頻道整齊統(tǒng)一，方便管理。可設(shè)定多組頻道序列實(shí)現(xiàn)收費(fèi)頻道組。大醫(yī)院也可自辦電視頻道加入其中。數(shù)字電視系統(tǒng)多少錢電視系統(tǒng)工程具有網(wǎng)絡(luò)通信功能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="數(shù)字電視系統(tǒng)多少錢,電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361363894453125/8741673.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(biāo)準(zhǔn)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(diǎn)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(jī)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。</p><p style="text-indent:25px">電視系統(tǒng)工程前端采用視頻設(shè)備的信噪比：自辦節(jié)目功能的前端，采用視頻設(shè)備的信噪比不應(yīng)小于45dB。采用相鄰頻道傳輸?shù)那岸嗽O(shè)備，應(yīng)符合下列要求：1）應(yīng)具有60dB以上的鄰頻信號控制特性。2）頻率偏移在甚高頻段不應(yīng)大于20kHz。像伴音功率比的調(diào)整范圍應(yīng)為10～20dB。無中心點(diǎn)：P2P無中心點(diǎn)的特點(diǎn)在P2P所有特點(diǎn)比較為突出，是P2P技術(shù)模式明顯區(qū)別于其他技術(shù)的鮮明特點(diǎn)。具體來說，就是將網(wǎng)絡(luò)中所有的資源和服務(wù)分散在每一個節(jié)點(diǎn)上，這樣的話每一個對等點(diǎn)都具有了相同的地位，具有了雙重功能，既可以請求服務(wù)還可以提供服務(wù)。電視系統(tǒng)工程具備寬帶互聯(lián)網(wǎng)接入能力。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="數(shù)字電視系統(tǒng)多少錢,電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364164375000/8011521.png"></div><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(jìn)行離散化處理，才能用數(shù)碼來表示其幅值。這種對幅值進(jìn)行分級，并按每級進(jìn)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)工程便于用戶二次開發(fā)等特點(diǎn)。數(shù)字電視系統(tǒng)多少錢</p><p style="text-indent:25px">電視系統(tǒng)工程系統(tǒng)設(shè)計應(yīng)嚴(yán)格按照國際和國家標(biāo)準(zhǔn)設(shè)計。數(shù)字電視系統(tǒng)多少錢</p><p style="text-indent:25px">數(shù)字電視系統(tǒng)工程的信源編譯碼技術(shù)：數(shù)字電視尤其數(shù)字高清晰度電視與模擬電視相比，在實(shí)現(xiàn)過程中，較為困難的部分就是對視頻信號和音頻信號的壓縮。數(shù)字電視的圖像不能象模擬電視的圖像和聲音那樣直接傳輸，而是要多一道壓縮編碼工序。視頻編碼技術(shù)主要功能是完成圖像的壓縮，使數(shù)字電視的信號傳輸量由995Mbit/s減少為20～30Mbit/s。與視頻編譯碼相同，音頻編譯碼主要功能是完成聲音信息的壓縮。在HDTV視頻壓縮編譯碼標(biāo)準(zhǔn)方面，都采用MPEG-2標(biāo)準(zhǔn)。MPEG壓縮后的信息可以供計算機(jī)處理，也可以在現(xiàn)有和將來的電視廣播頻道中進(jìn)行分配。數(shù)字電視系統(tǒng)多少錢</p><p style="text-indent:25px">上海熊貝信息技術(shù)有限公司主要經(jīng)營范圍是安全、防護(hù)，擁有一支專業(yè)技術(shù)團(tuán)隊和良好的市場口碑。上海熊貝致力于為客戶提供良好的IPTV電視系統(tǒng)，監(jiān)控系統(tǒng)，弱電工程，一切以用戶需求為中心，深受廣大客戶的歡迎。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于安全、防護(hù)行業(yè)的發(fā)展。上海熊貝立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2270506.html</p></div></div></div></div></div><div id="tzvxeli" class="page-right twoColRt"><div id="3qhzgif" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8f8f8rd" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="zt2pmdf" class="recomPic 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