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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)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>高清有線電視系統(tǒng)技術(shù)方案價(jià)錢,電視系統(tǒng)工程</p><p><span>***更新：</span>2020-11-07 03:23:22</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="7cewtvc" 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="f3ur7df" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="gv7auby" class="box"><p><p style="text-indent:25px">有線電視系統(tǒng)工程的組成：（1）傳輸網(wǎng)絡(luò)。傳輸網(wǎng)絡(luò)處于前端設(shè)備和用戶分配網(wǎng)絡(luò)之間，其作用是將前端輸出的各種信號不失真地、穩(wěn)定地傳輸給用戶分配部分，高清有線電視系統(tǒng)技術(shù)方案價(jià)錢。傳輸媒介可以是射頻同軸電纜、光纜、微波或它們的組合，當(dāng)前使用較多的是光纜和同軸電纜混合（HFC）傳輸。（2）分配網(wǎng)絡(luò)。有線電視的分配網(wǎng)絡(luò)都是采用電纜傳輸，其作用是將放大器輸出信號按一定電平分配給樓棟單元和用戶。（3）用戶終端，高清有線電視系統(tǒng)技術(shù)方案價(jià)錢。用戶終端是接到千家萬戶的用戶端口，用戶端口與電視機(jī)相連，高清有線電視系統(tǒng)技術(shù)方案價(jià)錢。用戶端口普遍采用單口用戶盒或雙口用戶盒，或串接一分支。未來用戶終端包括機(jī)頂盒、電纜調(diào)制解調(diào)器、解擾器等。電視系統(tǒng)工程智能化要實(shí)現(xiàn)的前提就是要有強(qiáng)大的智能化操作系統(tǒng)。高清有線電視系統(tǒng)技術(shù)方案價(jià)錢</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高清有線電視系統(tǒng)技術(shù)方案價(jià)錢,電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361363894453125/8741673.png"></div><p style="text-indent:25px">智能電視系統(tǒng)工程擁有傳統(tǒng)電視廠商所不具備的應(yīng)用平臺(tái)優(yōu)勢。連接網(wǎng)絡(luò)后，能提供IE瀏覽器、全高清3D體感游戲、視頻通話、家庭KTV以及教育在線等多種娛樂、資訊、學(xué)習(xí)資源，并可以無限拓展，還能分別支持組織與個(gè)人、專業(yè)和業(yè)余軟件愛好者自主開發(fā)、共同分享數(shù)以萬計(jì)的實(shí)用功能軟件。它將實(shí)現(xiàn)網(wǎng)絡(luò)搜索、IP電視、視頻點(diǎn)播(VOD)、數(shù)字音樂、網(wǎng)絡(luò)新聞、網(wǎng)絡(luò)視頻電話等各種應(yīng)用服務(wù)。用戶可以搜索電視頻道和網(wǎng)站，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。智能電視將為廣大用戶打造一個(gè)可加載無限的內(nèi)容、無限的應(yīng)用的開放的系統(tǒng)平臺(tái)，并可以根據(jù)自身需要進(jìn)行個(gè)性化安裝，使電視**過時(shí)。高清有線電視系統(tǒng)技術(shù)方案價(jià)錢電視操作系統(tǒng)工程是智能電視比較主流的選擇。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高清有線電視系統(tǒng)技術(shù)方案價(jià)錢,電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364018642578/1274226.png"></div><p style="text-indent:25px">有線電視系統(tǒng)工程的基礎(chǔ)知識(shí)：1.分配器：分配器是用來分配高頻信號的部件，它的作用有兩個(gè):一是將一種信號功率平均分配給幾路(通常是分為兩路、三路、四路、六路);二是可將兩路、三路、四路和六路信號混合起來。分配損耗:是指分配器輸入端的輸入電平Ui(dB)與輸出電平Uo(dB)之差。分支器和分配器的根本區(qū)別在于，分配器平均分配功率，而分支器是從電纜中取出一小部分功率提供給用戶，而大部分功率繼續(xù)向后面?zhèn)鬏敗?.串接分支器(串接單元)串接分支器是將分支器和用戶終端合成為統(tǒng)一體，具有分支器和系統(tǒng)輸出口的功能，所以叫串接分支器，有的又叫串接單元。</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(shí)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?cái)?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?cái)?shù)是12。社會(huì)的進(jìn)步與科學(xué)技術(shù)的發(fā)展對促進(jìn)我國廣播電視工程的數(shù)字化發(fā)展具有十分重要的意義。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高清有線電視系統(tǒng)技術(shù)方案價(jià)錢,電視系統(tǒng)工程" src="https://tyunfile.71360.com/UploadFile/shxiongbei/637361364057958985/4799873.png"></div><p style="text-indent:25px">有線電視系統(tǒng)工程的優(yōu)點(diǎn)：有線電視隨著技術(shù)的不斷發(fā)展和人民生活水平的不斷提高，還可以進(jìn)一步的發(fā)展。例如電視頻道數(shù)目可以不斷加多，自辦節(jié)目也可以不斷增加，而且還可以發(fā)展雙向傳送功能，利用多媒體技術(shù)把圖像、語言、數(shù)字、計(jì)算機(jī)技術(shù)綜合成一個(gè)整體進(jìn)行信息交流。國外雙向系統(tǒng)早已實(shí)用化，其主要功能主要有以下幾個(gè)方面：1）保安、家庭購物、電子付款、醫(yī)療。2）付費(fèi)電視節(jié)目可放誦較新電影等，可以按月付費(fèi)租用一個(gè)頻道，也可以按租用次數(shù)付費(fèi)，用戶還能點(diǎn)播所需節(jié)目。付費(fèi)用戶裝有***器，未付費(fèi)用戶則無法收看。3）用戶可與計(jì)算中心聯(lián)網(wǎng)，進(jìn)行數(shù)據(jù)信號，實(shí)現(xiàn)計(jì)算機(jī)通信。4）交換電視節(jié)目。5）系統(tǒng)工作狀態(tài)監(jiān)視。電視系統(tǒng)工程的芯片主要有單芯片和雙芯片兩種設(shè)計(jì)方案。旅館閉路電視系統(tǒng)改造方案價(jià)錢</p><p style="text-indent:25px">網(wǎng)絡(luò)信息技術(shù)的發(fā)展可以推動(dòng)廣播電視系統(tǒng)工程的更好發(fā)展。高清有線電視系統(tǒng)技術(shù)方案價(jià)錢</p><p style="text-indent:25px">智能電視系統(tǒng)工程是指像智能手機(jī)一樣，具有全開放式平臺(tái)，搭載了操作系統(tǒng)，可以由用戶自行安裝和卸載軟件、游戲等第三方服務(wù)商提供的程序，通過此類程序來不斷對彩電的功能進(jìn)行擴(kuò)充，并可以通過網(wǎng)線、無線網(wǎng)絡(luò)來實(shí)現(xiàn)上網(wǎng)沖浪的這樣一類彩電的總稱。智能電視首先意味著硬件技術(shù)的升級和**，只有配備了業(yè)界**的高配置、高性能芯片，才能順暢運(yùn)行大型3D體感游戲和各種軟件程序。其次，智能電視意味著軟件內(nèi)容技術(shù)的**，智能電視必然是一款可定制功能的電視。高清有線電視系統(tǒng)技術(shù)方案價(jià)錢</p><p style="text-indent:25px">上海熊貝信息技術(shù)有限公司位于青村鎮(zhèn)青村南路355號5幢135室。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下IPTV電視系統(tǒng)，監(jiān)控系統(tǒng)，弱電工程深受客戶的喜愛。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(shí)，遵守行業(yè)規(guī)范，植根于安全、防護(hù)行業(yè)的發(fā)展。上海熊貝憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽(yù)和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/1881578.html</p></div></div></div></div></div><div id="rgdqsz7" class="page-right twoColRt"><div id="mlskmyv" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="kphjgn8" class="recomPic 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