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    • 90. 发明授权
    • System for transmitting high-speed added-value services in terrestrial digital broadcasting
    • 用于在地面数字广播中传输高速附加值业务的系统
    • US06859501B1
    • 2005-02-22
    • US09403053
    • 1998-03-21
    • Gerd ZimmermannHenrik Schulze
    • Gerd ZimmermannHenrik Schulze
    • H04H20/00H04B7/22H04H20060101H04J11/00H04L1/08H04L27/00H04L27/04H04L27/32
    • H04B7/22H04J11/00H04L1/08H04L27/00H04L27/04H04L27/32
    • 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.
    • 宽带多频块扩展数字音频广播X-DAB)传输方法,用于以高数据速率向模拟电视频道内的移动接收机的无干扰传输增值业务。 提供了单频网络中至少两个同时广播的相邻X-DAB频率块。 数字输入数据流被复用到频率块上,其中输入数据蒸汽根据输入数据流的服务内容进行源编码。 输入数据流被分成多个单独密度流,每个单独的数据流具有相应的服务质量重要性,并且根据至少两个频率块中的各个服务质量重要性进行分配。 该方法在错误保护配置文件和数据速率方面提供了高度的灵活性,并允许执行非常数比误差保护配置文件以及层次传输。