This diploma thesis focuses on multimedia streaming from IP cameras. Its main goal is to explain theoretical background of real-time streaming via computer networks, and describe development of a recording system. This recording system is meant to be used mainly in schools for lecture recording purposes. The thesis contains description on how a recording server application and web-based management system were developed. The theoretical part explains topics related to multimedia streaming, networking, and multimedia procesing, such as real-time streaming protocols, encoding, compression, network latency, network congestion and many others.

Cieľom práce je navrhnúť a vytvoriť hlasom ovládaného asistenta(voicebota), ktorý bude ľahko nasaditeľný na webovú stránku. Používateľom tak bude poskytnutý moderný spôsob, ako prirodzene komunikovať cez internetový prehliadač. Hlavný dôraz je kladený na synchronizáciu medzi hlasovým asistentom a obsahom na webovej stránke. Synchronizácia je dosiahnutá obojsmerným prenosom hlasu a textových príkazov medzi klientom a serverom. Na to je použitá technológia WebRTC v kombinácií so signalizačným protokolom SIP. Práca sa zaoberá oblasťami ako VoIP telefonovanie, počítačové siete a strojové učenie(proprietárne rečové technológie od Phonexie). Benefitom nasadenia hlasového asistenta je zníženie nákladov na odchádzajúce hovory pre klientov, odľahčenie agentov na call centrách pri odpovedaní na často kladené otázky a zvýšenie záujmu zákazníkov vďaka použitiu nových technológií.

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This work is about position prediction in network, it is focused to find Landmark closest to the Host in the network (with lowest distance vector). The algorithm is based on GNP system. In terms of GNP system simulation was selected method for mathematical part of position prediction. The method was Simplex Downhill. The designed algorithm was implemented in Java. In the first step chose Host continent by meassuring the distance vector. In next step is selected nearest part in the continent. In conclusion estimate Host its position and then closest Landmark. Results from this work is important for designing TTP protocol. The verdict is that the GNP can be used for TTP, but Landmarks must be located in uniform density.

無線寬頻網路（Mobile Internet Broadband Network）的出現對於無線通訊產業、傳播媒體產業與影音內容產業產生了相當程度的影響，而數位化的科技發展更帶來通訊、傳播及平面媒體產業融合的可能性，無線寬頻影音串流（Mobile Internet Video Streaming）是一架構在此無線通訊媒體匯流後的新產物，透過觀察和分析它的演進發展，可以說明和解釋網路新媒體匯流造成傳統影音產業價值鏈的改變。 吾人將以無線通訊之影音播放技術之演進與發展，以及相對最先發生變化之影音產業經營環境，產生之影響，做產業價值鏈分析研究，進而了解產業經營環境之改變，新的價值創造流程及技術平台的關聯性。並藉由日本NTT DOCOMO之經驗，及對其供應商之觀察，了解台灣產業發展之可能趨勢，及策略建議藍圖。 本研究採P.W. Bane、S.P. Bradley & D.J. Collis (1998)三人提出之寬頻產業五層模式作為分析工具。五層模式分為內容(content)、包裝(package)、傳輸網路(transmission)、操作(manipulation) 及終端設備(terminal)五層架構。主要目的為以整體網路頻寬及技術演進的觀點進行分析五層間價值消長之關係，及整體網路之價值之改變。 我們發現在新的技術導入既有影音市場，由於網路之雙向特性，會產生網路效應及網路外部性，這些地方將產生新的價值所在，而擁有網路外部性的影音操作平台可獲得較高的價值。完整而消費者導向的影音操作平台，將首先累積產業之價值所在，影音操作平台的擁有者將成為產業的領導者，最終將成為標準的制定者。 影音內容的價值獲得來自網路外部性是經由更多人與內容來源(內容提供者)互動，造成下一次消費或其他使用者的外部性以及生產外部性，這樣的外部性是由虛擬連結產生．價值聚集於內容包裝層。 無線寬頻影音操作平台是服務成功的關鍵，有效的整合價值鏈及應用是必須在產業發展前完成，而完整的影音操作平台包含：內容製作壓縮平台、串流平台、訊息平台、及手機之用戶播放平台。 我們發現，新的技術導入市場，需要事先將價值鏈重新定義，整合出可行之新的商業模式，再依據新的價值鏈，新的服務流程去整合新的操作平台，投入服務後，由於是消費者導向的服務設計，可以降低消費者對新科技及新服務的學習門檻及進入障礙，而獲得市場認同。 / “Unlimited boundary & Ubiquitous content” Because of the improving the bandwidth & compression technology of mobile Internet, there are a very extremely industrial convergency in communication, broadcasting, & video audio content industry. There are several new technology including streaming, MPEG, multi media message, 3G which push the whole world going to a new Ubiquitous environment & totally change the old value chain of video audio industry, but we still have no ideal where it should go & what will happen next. We will try to research the technical evolution of video broadcasting which really influence our movie, TV industry. It will change the customer behavior of watching TV, or going to the movie. We especially want to find out where is the new value in the mobile Internet multi media industry. We will use the 5 liars analysis model of broadband industry (P.W. Bane、S.P. Bradley & D.J. Collis (1998))as our basic methodology to find out how the three vertical industries became a new 5 horizontal industries, which are content, package, transmission, manipulation, & terminal. We also want to know how they work internally & externally. We find that the video audio manipulation platform will become the key solution for this value chain, because of its network externality & network effect. The content providers also very important to provide the quality of contents to service the end customers. How to consolidate a new valuable services process & user friendly interface is the big issue here for whom will invest a large of money to creat the new mobile internet portal & new audio vedio manipulation platform. They must think not only the user interface of handset, but also the mechanism of profit sharing between these different providers who never work together in the history.