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題 名 | VOD架構之探討 |
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作 者 | 黃振誠; 蔡昭宏; | 書刊名 | 電信研究 |
卷 期 | 25:6 1995.12[民84.12] |
頁 次 | 頁969-983 |
分類號 | 448.889 |
關鍵詞 | VOD; Video-on-demand; |
語 文 | 中文(Chinese) |
中文摘要 | 由於光纖傳輸、影像壓縮及數位調變等技術的進步以及價格的日益合理,單一媒介 所能傳送的視訊節目遠大於以往,依用戶個別需求而提供的互動電訊服務乃成為可行。 本文對互動電視系統作一介紹,且就各種可能的系統架構及頻譜運用情形作一比較分 析,最後並對國外廠商中數個各具特色的試用計劃加以介紹,希望能使讀者對互動電視的發 展有所了解。 |
英文摘要 | Owing to the technique advances and cost reduction in areas such as fiber transmission, video compression and digital modulation, transmission media can carry more video programs than ever before. Hence, it is time to deploy video-on-demand (VOD) service from which users can get the specific programs he (or she) personally specifies. VOD system configuration is introduced while comparison of possible network architectures and ways of spectrum utilization is also made. Finally, some undergoing field trials which have their own characteristics are described. It is hoped that this article will be helpful in readers' understanding in video-on-demand. |
本系統中英文摘要資訊取自各篇刊載內容。