标题: MPEG-II 节目之多工/解多工器及CATV网路上传输协定之设计与制作
Design and Implementation of MPEG-II MUX/DEMUX and Transport Protocol over CATV Network
作者: 詹钊明
Jan, Jau-Ming
林盈达
Ying-Dar Lin
资讯科学与工程研究所
关键字: 多工器;解多工器;有线电视系统;随选视听服务;私用资料服务;私用资料协定;Multiplexer;Demultiplexer;CATV system;Vodie-on_Demand;private data service;private data protocol
公开日期: 1997
摘要: MPEG-II 标准提供了像随意视讯点播之类应用的视讯、音讯资料的压缩标
准以及伺服器端与客户端间所需的同步机制。它同时也提供了工业界一个
基本的准绳可以依循,以便能降低硬体的生产成本和增加由不同厂商所生
产硬体间的相容性。在本论文中,我们根据MPEG-II 系统层的标准设计并
实作 CATV 网路上的多工器/解多工器。这个多工器的目的是将一个或数
个的 MPEG-II 节目或者是私用资料(Private Data)流结合成一个单一
的传输资料流(Transport Stream)。相反的,解多工器则是将使用者所
需的资料从这传输资料流中抽取出来。再来,我们将焦点放在 CATV 网路
上的传输协定的设计。在这一部份,我们提出了私用 资料(Private
data)的传输协定、以及伺服器端与客户端间资料传输所必需的控制信号
。在私用资料传输协定方面,为了避免多工器/解多工器的复杂性,因此
我们延用了 MPEG-II 系统层的标准并加以修改以符合私用资料的传输特
性。
MPEG-II standard provides the compression techniques and
synchronization mechanism for those applications such as
Video-on-Demand. It provides the industry with a baseline
principle to follow in order to reduce the cost of hardware and
improve the hardware interoperability. In this thesis, we
designand implement the MPEG-II multiplexer/demultiplexer of
CATV system that provides the VoD service and other private
data services according to the MPEG_II standard. The
multiplexer is in charge of multiplexing several MPEG-
IIprograms/private data streams into a single transport stream.
On the other hand, the demultiplexer is in charge of
extracting the data needed by the individual user. After
that, we focus on the design of transport protocol in the
CATV system. At this part, we propose the private data protocol
and some necessary signalings such as connection setup
signaling, end_to_end signaling. For simplifying the design
of multiplexer/demultiplexer, we adopt and modify the
private_stream_2 defined in the MPEG-II system layer as our
private data protocol.
URI: http://140.113.39.130/cdrfb3/record/nctu/#NT860394057
http://hdl.handle.net/11536/62887
显示于类别:Thesis