发明名称 |
SYSTEM FOR TRANSMITTING HIGH-SPEED ADDED-VALUE SERVICES IN TERRESTRIAL DIGITAL BROADCASTING |
摘要 |
<p>A broadband multi-frequency-block Extended Digital Audio Broadcasting X-DAB) transmission method for the interference-free transmission of value-added services at a high data rate to mobile receivers within an analog television channel. At least two simultaneously-broadcast adjacent X-DAB frequency blocks in a single-frequency network are provided. A digital input data stream is multiplexed onto the frequency blocks, with the input data steam being source-coded according to the service content of the input data stream. The input data stream is separated into a plurality of individual dens streams, with the individual data steams each having a respective quality of service importance and being distributed according to the respective quality of service importance among the at least two frequency blocks. The method offers a high degree of flexibility with regard to error protection profiles and thus data rates, and permits the implementation of non-constant-ratio error protection profiles, as well as hierarchical transmission.</p> |
申请公布号 |
EP0974210(A1) |
申请公布日期 |
2000.01.26 |
申请号 |
EP19980917042 |
申请日期 |
1998.03.21 |
申请人 |
DEUTSCHE TELEKOM AG |
发明人 |
ZIMMERMANN, GERD;SCHULZE, HENRIK |
分类号 |
H04H20/00;H04B7/22;H04H;H04J11/00;H04L1/08;H04L27/00;H04L27/04;H04L27/32;(IPC1-7):H04H1/00 |
主分类号 |
H04H20/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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