200845671 九、發明說明： 【發明所屬之技術領域】 η本rfH關於一種多媒體隨選服務（Mutimedia on Demand ι MOD)傳輸之方法，特別是關於一種點對點 (peer-1o-peer)多媒體隨選服務傳輸之方法。 【先前技術】 現行於市面上之多媒體隨選服務會使用主從式架構 (Client/Server)或内容發佈網路（CDN ’ c〇nten1： Deliv200845671 IX. Description of the invention: [Technical field of invention] η本rfH relates to a method of multimedia selective service (Mutimedia on Demand ι MOD) transmission, in particular to a peer-to-peer multimedia on-demand service transmission The method. [Prior Art] The current multimedia on-demand service on the market uses a master-slave architecture (Client/Server) or a content distribution network (CDN 'c〇nten1: Deliv
Networks)來進行多媒體檔案的傳輸。 主從式架構為一或多伺服器（Server)，與一或多使用者端 (Client)，使用者端經由網路連線至伺服器取得資料。該技術 的特色是架設簡易，只需伺服器與網路相連，使用者便可取得 所需資料。然而該技術受到伺服器端提供的頻寬與運算能力所 限’一旦使用者人數超過伺服器所能同時提供服務的數量，便 只能夠透過添購網路頻寬及伺服器解決，增加服務提供者的成 本0 而内谷發佈網路係以許多的獨立網路所組成，由原始内容 伺服器透過複製（replication)多媒體檔案的方式預先^到每 一個直接與用戶連接的網際網路服務提供者（InternetNetworks) to transfer multimedia files. The master-slave architecture is one or more servers, and one or more clients, and the user terminal connects to the server via the network to obtain data. The feature of this technology is that it is easy to set up and only requires a server to connect to the network, so users can get the information they need. However, this technology is limited by the bandwidth and computing power provided by the server. 'Once the number of users exceeds the number of services that the server can provide at the same time, it can only be solved by adding network bandwidth and servers to increase service provision. The cost of the user is 0. The Net Valley distribution network consists of a number of independent networks. The original content server pre-distributes the multimedia files to each Internet service provider directly connected to the user. (Internet
Service Provider ; ISP )端的内容快取伺服器（c〇ntent replica server)上。如此一來所有來自各網際網路服務提供 者的使用者便可以直接取得近端内容快取伺服器的多媒體槽 案内容，能夠節省不必要的封包傳輸流量，提高整個網路運^ 的效率。然而該技術需要大量的硬體設施，導致成本過高，為 其缺點。 回…、 200845671 【發明内容】 有鑑於以上問題，本發明之主要目的在於 法’係令用戶端先取得所要权多媒 建Γ:ί=:ϊ，;之其餘用戶端息，並依據此些訊息 傳輸作掌。士此刹ϊί=連結’進行點對點多媒體標案共享 月量民務提供者_寬與域成本，贿糾时職之 ，本發騎縣之轉點乡媒體隨選服務傳 =資料；用戶端透過各缝位方式取得插 ^使用者訊息；用戶端根據所取得之訊息私、 連結；建立連結後，用戶端間進行資料 ^掌 完ϋ案後，在亂網路中繼續分享檔案給要求此^戶^取付 其中多媒體隨選服務之提供者在此 可多務媒^ 器的角色，視頻寬狀況提供資料:如此 有關本發狀雜財作，耻知轉最 6 200845671 說明如下。 【實施方式】 睛參照「第1圖」，係為描述資料 隨選服務之前，服務提供纟_ # 供多媒體 媒體檔案之描述資料1Q2之作業g j而產生對該多 媒體檔案101進行分段及雜凑^ 務提供者對多 與雜凑資訊儲存為檔案描述資料1〇2、。’、域案101之分段 凊參照「第2圖」，係為本發明之方換 * 由用戶端與多媒體服務提供者下，Service Provider; ISP) on the content cache server (c〇ntent replica server). In this way, all users from various Internet service providers can directly obtain the multimedia content of the near-end content cache server, which can save unnecessary packet transmission traffic and improve the efficiency of the entire network. However, this technology requires a large amount of hardware facilities, resulting in excessive cost and its shortcomings. [Background of the Invention] In view of the above problems, the main purpose of the present invention is to enable the user to first obtain the required multi-media construction: ί=:ϊ,; the rest of the user's interest, and according to this The message is transmitted.士在此 brakeϊί=链接's peer-to-peer multimedia project sharing monthly public service provider _ wide and domain cost, bribes and corrections, the position Each seam position method is inserted into the user message; the user terminal is privately and connected according to the obtained message; after the connection is established, the user terminal performs the data and finishes the file, and then continues to share the file in the random network to request this ^ The user can pay for the role of the multimedia on-demand service provider, and the video wide status provides information: so about this hair-like miscellaneous work, shameful turn to the most 6 200845671 is explained below. [Embodiment] The reference to "1st picture" refers to the segmentation and hashing of the multimedia file 101 before the service is provided by the service provider _# for the description of the multimedia media file 1Q2. ^ The provider provides multiple and hash information for archival description data1, 2. ‘, Section 101 of the domain case 凊 Refer to “Figure 2” for the party of the invention. * By the client and the multimedia service provider,
_得該檔案之描1G 如隨身碟等取得該描述資料。僻該數位貧料之媒體500 網ϊ述資料，向· 訊息’此時網路中並無其他二端要案，^用戶端 有H槽^用戶端30與多媒體服務提供田者、經擁 用戶鈿10根據由DHT網路4〇〇取得的資盥、广 多媒體服務提供者㈣建立連結，開始^ '體資30及 用戶端20從已有完整檔案的用戶 二^作業。 ，資料，並將所接收的影片存於财 超過-蚊值旦，： 儲存於儲存單元2丨巾。，戶_ 資， 隔-段時間（預定時間）更新DHT網路中的用=_= 母 (、_ Get the description of the file 1G such as a flash drive to obtain the description. The singularity of the media 500 network narration data, to the message 'there is no other two-end Internet in the network at this time, ^ the client has H slot ^ client 30 and multimedia service provider Tian, the user 钿10 According to the DHT network 4〇〇 obtained, the multimedia service provider (4) establishes a link, and starts the 'body 30 and the user 20 from the user who has the complete file. , information, and the received video in the financial excess - mosquito value,: stored in the storage unit 2 wipes. , household _ capital, interval - (scheduled time) update the DHT network with =_= mother (,
200845671 進彳找享傳輸健之用戶端訊息。 1〇ι之傳輸，並求多媒體資料 ί 2〇T此?提:者_有完整槽案之訊ί輸 共享傳輪作業。二二提供者_建立連結，進行 影片資料，而盥用戶端切由_^戶，3〇與服務提供者測接收 料儲存於儲存Ϊ元21 i用乂戶』資料，並將資 用戶端仍與DHT網路脑在用戶&的儲存早元中，只要 之用戶端，建立輕ίϋ可^應其他要求多媒體播案101 式，皆可以此_ 作業。其制戶端請求傳輸方 為一直存在於膽網路働中作 其他二戶端：或避擁= =求該多媒體擋案傳輪===== 用戶端根據描述資料經由 案或擁有相同多媒體檔案之ί戶 、’建立連結，開始傳輸作業（步驟615). 享用 【圖式簡單說明】 第1圖係為本發明之描述資料作業圖 ，2圖係為本發明之架構方塊圖/'回 第3圖係為本發明之步驟流程圖 8 200845671 【主要元件符號說明】 10用戶端 11儲存單元 用戶端 21儲存單元 3〇用戶端 31儲存單元 101多媒體檔案 1〇2多媒體檔案描述資料 Ο ί 2〇〇多媒體隨選服務提供者 201儲存單元 300伺服器 400 DHT網路 500數位儲存媒體 步驟_ ^媒體隨選服務提供者料舰槽餘生構案資 步驟605 ^請求該多媒體權案傳輸之用 式取得該檔案描述資料。 田谷種數位方 步驟_ ^戶端根據描述資料經由勝網路尋找正傳輪相 ㈣fiK „案或擁有相同多媒體檔案之用戶端。^ 乂驟6 5用戶端間建立連結，開始傳輸作業。 步驟620，輸完成後，用戶端持有該播案，並於d 等待其餘用戶端要求共享。 碑中 9200845671 Enter and find the user information of the transmission. 1〇ι transmission, and seeking multimedia information ί 2〇T this? mention: _ have a complete slot case ̄ ̄ ̄ ̄ ̄ ̄ The 22nd provider _ establishes a link to make the video material, and the user is cut by the _^ household, 3〇 and the service provider to measure the received material and store it in the storage unit 21 i with the account information, and the client is still With the DHT network brain in the user & storage in the early yuan, as long as the user side, the establishment of a light ϋ ^ ^ other requirements multimedia broadcast case 101, can be this _ homework. The client requesting the transmission party is always in the ambiguous network for other two clients: or avoiding = = seeking the multimedia file transmission ===== The user terminal according to the description data or has the same multimedia File ί, 'establish a link, start the transfer operation (step 615). Enjoy [schematic description] Figure 1 is a description of the data operation diagram of the present invention, 2 is the architecture block diagram / 'back of the present invention Figure 3 is a flow chart of the present invention. Figure 8 200845671 [Explanation of main component symbols] 10 client 11 storage unit client 21 storage unit 3 client 31 storage unit 101 multimedia file 1 2 multimedia file description data Ο ί 2 〇〇Multimedia On-Demand Service Provider 201 Storage Unit 300 Server 400 DHT Network 500 Digital Storage Media Step _ ^Media On-Demand Service Provider Shipment Remaining Structure Step 605 ^Request the Multimedia Rights Transmission The file description material is obtained by the formula. Tiangu kind of digital step _ ^The terminal searches for the positive wheel (4) fiK „ case or the client with the same multimedia file according to the description data. ^ Step 6 5 establish a link between the users and start the transfer operation. Step 620, After the input is completed, the client holds the broadcast and waits for the remaining clients to request sharing.