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clearfix"><div id="zvdrf5d" class="twoCol"><div id="f33zthn" class="page-proshow clearfix"><p 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</a>?<a href="http://www.cdcfah.com/cp/third-dianshiji_qtdsj/">其他電視機</a>?海口閉路電視系統(tǒng) 歡迎咨詢上海熊貝信息技術(shù)供應(yīng)</p><div id="tjz7lrp" class="leftbox clearfix"><h1>?？陂]路電視系統(tǒng) 歡迎咨詢上海熊貝信息技術(shù)供應(yīng)</h1><div id="b5xtj5v" class="proBig"><div id="zzpnlz3" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364226435547/2360974.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="5zzxj3x" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364226435547/2360974.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="dt3fdrh" 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>海口閉路電視系統(tǒng),電視系統(tǒng)工程</p><p><span>***更新：</span>2020-12-03 04:22:51</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="nvb3xdr" 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(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="53rzfth" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zx5trpn" class="box"><p><p style="text-indent:25px">電視系統(tǒng)工程的編碼壓縮方法：降低采樣頻率。降低采樣頻率能夠壓縮碼率，但是，?？陂]路電視系統(tǒng)，奈奎斯特采樣定理指出，當(dāng)取樣頻率（fs）小于基帶頻率（fm）的2倍時，頻譜發(fā)生重疊，則采用低通濾波器無法無失真地恢復(fù)原信號。由于電視圖像信號的能量主要集中在以行頻及其各次諧波頻率為中心的較窄范圍內(nèi)，海口閉路電視系統(tǒng)，中間存在很大的空隙，因此，若把取樣頻率選為半行頻的奇數(shù)倍，就可使fs<2fm時出現(xiàn)的頻譜混迭部分形成半行交錯，?？陂]路電視系統(tǒng)。于是，可以采用梳狀濾波器將其選出以較小的失真恢復(fù)原始信號。電視系統(tǒng)工程可以加快廣播電視自身的發(fā)展。?？陂]路電視系統(tǒng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海口閉路電視系統(tǒng),電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364226435547/2360974.png"></div><p style="text-indent:25px">電視系統(tǒng)工程的高清數(shù)字接收機在系統(tǒng)中主要接收廣電的有線電視信號。數(shù)字電視節(jié)目通過當(dāng)?shù)赜芯€光纜輸出，分頻放大后輸入到數(shù)字接收機中，通過數(shù)字接收機設(shè)置頻點以及符號率來掃描此頻點的內(nèi)容。一般當(dāng)?shù)匾粋€頻點可以收到6~8個節(jié)目，如果需要全部40多套節(jié)目的話，需要7~8臺數(shù)字接收機。數(shù)字接收機解頻并把TS流通過不同的組播地址發(fā)送到組播路由器上，然后配置組播，實現(xiàn)按需組播到需要收看節(jié)目的客房里的機頂盒上。在數(shù)字電視信號加密的情況下，數(shù)字接收機需內(nèi)插廣電提供的卡，一臺數(shù)字接收機可解出一個頻點上的6-8個頻道。天津電視系統(tǒng)公司電視系統(tǒng)工程提供標(biāo)準(zhǔn)接口，使用標(biāo)準(zhǔn)的音視頻協(xié)議，支持標(biāo)準(zhǔn)的視訊與數(shù)據(jù)協(xié)同工作方式等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="海口閉路電視系統(tǒng),電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364331757813/7386371.png"></div><p style="text-indent:25px">電視系統(tǒng)工程完善的會議中心及獨具特色的戶外多功能區(qū)，是舉辦大型宴會、會議以及各類社交活動的理想之所。為助力酒店，打造個性化、智能化的星級酒店，經(jīng)過酒店嚴(yán)格篩選，采用能化電視系統(tǒng)工程解決方案，總體設(shè)計：40個高清節(jié)目、VOD電影點播、酒店信息化服務(wù)、房間全部配智能終端。酒店智慧系統(tǒng)集智能化軟硬件、酒店周邊、社交互動、酒店智慧服務(wù)及酒店云管理系統(tǒng)于一體，旨在為酒店提供更為完善、更方便的全套智慧生態(tài)服務(wù)體系。</p><p style="text-indent:25px">電視系統(tǒng)工程的采樣：將時間和幅度上連續(xù)的模擬信號轉(zhuǎn)變?yōu)闀r間離散的信號，即時間離散化。電視信號數(shù)字化采樣頻率的選擇首先應(yīng)滿足奈奎斯特抽樣定理，即取樣頻率必須大于信號帶寬的兩倍，才能從采樣信號中完全恢復(fù)原信號。對于數(shù)字分量編碼信號的采樣，CCIR601建議亮度采樣頻率為525/59.94和625/50兩大制式行頻的較小公倍數(shù)2.25MHz的6倍，即13.5MHz。對現(xiàn)行電視制式而言，亮度信號的較大帶寬是6MHz，13.5MHz>2×6MHz=12MHz，所以它符合奈奎斯特定理。而色差信號的帶寬比亮度信號窄得多，所以在分量編碼時兩個色差信號的取樣頻率可以低一些。電視系統(tǒng)工程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。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="?？陂]路電視系統(tǒng),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)工程技術(shù)的優(yōu)勢在于與鏡像相比更為智能化，在工作過程中可以明顯提高網(wǎng)絡(luò)中信息流動的效率，在解決關(guān)于網(wǎng)絡(luò)寬帶小、用戶訪問量大以及網(wǎng)點分布不均勻等問題上更有優(yōu)勢。很大程度上提高了用戶訪問網(wǎng)站的響應(yīng)速度。但是目前技術(shù)的發(fā)展也遭遇了瓶頸，就是客戶機/服務(wù)器模式的輸入/輸出。由于電視技術(shù)的目前市場占有量快速增加，呈現(xiàn)式增長的需求，因而只能夠支持有限的客戶機的邊緣服務(wù)器已經(jīng)不足以滿意消費者的消費需求，需要進(jìn)行不斷的技術(shù)更新。電視系統(tǒng)工程滿足電影、電視劇等高清播放的請求。海口閉路電視系統(tǒng)</p><p style="text-indent:25px">電視系統(tǒng)工程能完全適應(yīng)目前及今后的發(fā)展需要，提供符合實際需求的高效率的應(yīng)用軟件。?？陂]路電視系統(tǒng)</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(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。?？陂]路電視系統(tǒng)</p><p style="text-indent:25px">上海熊貝信息技術(shù)有限公司致力于安全、防護(hù)，以科技創(chuàng)新實現(xiàn)***管理的追求。公司自創(chuàng)立以來，投身于IPTV電視系統(tǒng)，監(jiān)控系統(tǒng)，弱電工程，是安全、防護(hù)的主力軍。上海熊貝繼續(xù)堅定不移地走高質(zhì)量發(fā)展道路，既要實現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實現(xiàn)轉(zhuǎn)型再突破。上海熊貝始終關(guān)注安全、防護(hù)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: http://www.cdcfah.com/cp/2244291.html</p></div></div></div></div></div><div id="fth5tjh" class="page-right twoColRt"><div id="zxntbxn" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="nvb3pvl" 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配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="3335p5h" class="recomPic likePro"><a 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